diff --git a/docs/HTML/DataFrame.html b/docs/HTML/DataFrame.html
index 317ef57e..ffde21df 100644
--- a/docs/HTML/DataFrame.html
+++ b/docs/HTML/DataFrame.html
@@ -1050,163 +1050,175 @@ <H2 ID="2"><font color="blue">API Reference with code samples <font size="+4">&#
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Acceleration bands">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/BollingerBand.html">AccelerationBandsVisitor</a>{}</td>
+      <td title="Calculates Bollinger bands">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/BollingerBand.html">BollingerBand</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Accumulation/Distribution (AD) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/AccumDistVisitor.html">AccumDistVisitor</a>{}</td>
+      <td title="Calculates rolling Chande/Kroll trading indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ChandeKrollStopVisitor.html">ChandeKrollStopVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Arnaud Legoux Moving Average">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ArnaudLegouxMAVisitor.html">ArnaudLegouxMAVisitor</a>{}</td>
+      <td title="Calculates decay indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DecayVisitor.html">DecayVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Average Directional Movement Index (ADX)">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/AvgDirMovIdxVisitor.html">AvgDirMovIdxVisitor</a>{}</td>
+      <td title="Calculates double cross over">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DoubleCrossOver.html">DoubleCrossOver</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Balance of Power indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/BalanceOfPowerVisitor.html">BalanceOfPowerVisitor</a>{}</td>
+      <td title="Calculates Drawdown">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DrawdownVisitor.html">DrawdownVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Bollinger bands">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/BollingerBand.html">BollingerBand</a>{}</td>
+      <td title="Calculates Elder's Thermometer indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EldersThermometerVisitor.html">EldersThermometerVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Commodity Channel Index">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/CCIVisitor.html">CCIVisitor</a>{}</td>
+      <td title="Calculates Fisher transform">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/FisherTransVisitor.html">FisherTransVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Ehlers' Center of Gravity indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/CenterOfGravityVisitor.html">CenterOfGravityVisitor</a>{}</td>
+      <td title="Calculates Hurst exponent">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HurstExponentVisitor.html">HurstExponentVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Chaikin Money Flow (CMF) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ChaikinMoneyFlowVisitor.html">ChaikinMoneyFlowVisitor</a>{}</td>
+      <td title="Calculates vectors of peaks and valleys">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PeaksAndValleysVisitor.html">PeaksAndValleysVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Chande/Kroll trading indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ChandeKrollStopVisitor.html">ChandeKrollStopVisitor</a>{}</td>
+      <td title="Calculates Pivot Points, Supports and Resistances indicators">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PivotPointSRVisitor.html">PivotPointSRVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Choppiness Index indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ChopIndexVisitor.html">ChopIndexVisitor</a>{}</td>
+      <td title="Calculates Price Distance">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PriceDistanceVisitor.html">PriceDistanceVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Coppock curve">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/CoppockCurveVisitor.html">CoppockCurveVisitor</a>{}</td>
+      <td title="Calculates psychological line">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PSLVisitor.html">PSLVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates decay indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DecayVisitor.html">DecayVisitor</a>{}</td>
+      <td title="Calculates Quantitative Qualitative Estimation Indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/QuantQualEstimationVisitor.html">QuantQualEstimationVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling values of Detrend Price Oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DetrendPriceOsciVisitor.html">DetrendPriceOsciVisitor</a>{}</td>
+      <td title="Calculates rate of change">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RateOfChangeVisitor.html">RateOfChangeVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates double cross over">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DoubleCrossOver.html">DoubleCrossOver</a>{}</td>
+      <td title="Calculates returns">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ReturnVisitor.html">ReturnVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Drawdown">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DrawdownVisitor.html">DrawdownVisitor</a>{}</td>
+      <td title="Calculates Sharpe or Sortino ratio">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/SharpeRatioVisitor.html">SharpeRatioVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Ease Of Movement indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EaseOfMovementVisitor.html">EaseOfMovementVisitor</a>{}</td>
+      <td title="Calculates slope of the diff">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/SlopeVisitor.html">SlopeVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Even Better Sine Wave (EBSW) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EBSineWaveVisitor.html">EBSineWaveVisitor</a>{}</td>
+      <td title="Calculates Treynor ratio">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/SharpeRatioVisitor.html">TreynorRatioVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Ehler's Super Smoother Filter (SSF) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EhlerSuperSmootherVisitor.html">EhlerSuperSmootherVisitor</a>{}</td>
+      <td title="Calculates true price range based on low, high, close">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/TrueRangeVisitor.html">TrueRangeVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Elder Ray Index (ERI) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ElderRayIndexVisitor.html">ElderRayIndexVisitor</a>{}</td>
+      <td title="Calculates rolling Vortex trading indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VortexVisitor.html">VortexVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Elder's Force Index (ERI) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EldersForceIndexVisitor.html">EldersForceIndexVisitor</a>{}</td>
+      <td title="These are volatility based indicators" style="text-align:center;background-color:LightGrey;color:DarkBlue">Volatility Based &nbsp;&nbsp; <font size="+3">&#127755;</font></td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Elder's Thermometer indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EldersThermometerVisitor.html">EldersThermometerVisitor</a>{}</td>
+      <td title="Calculates Acceleration bands">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/BollingerBand.html">AccelerationBandsVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Fisher transform">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/FisherTransVisitor.html">FisherTransVisitor</a>{}</td>
+      <td title="Calculates rolling Garman Klass volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/GarmanKlassVolVisitor.html">GarmanKlassVolVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Garman Klass volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/GarmanKlassVolVisitor.html">GarmanKlassVolVisitor</a>{}</td>
+      <td title="Calculates rolling Hodges-Tompkins volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HodgesTompkinsVolVisitor.html">HodgesTompkinsVolVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Heikin Ashi candles">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HeikinAshiCndlVisitor.html">HeikinAshiCndlVisitor</a>{}</td>
+      <td title="Calculates rolling Keltner channels">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/KeltnerChannelsVisitor.html">KeltnerChannelsVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Hodges-Tompkins volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HodgesTompkinsVolVisitor.html">HodgesTompkinsVolVisitor</a>{}</td>
+      <td title="Calculates Mass Index for high/low columns">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/MassIndexVisitor.html">MassIndexVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Holt-Winter Channels (HWC) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HoltWinterChannelVisitor.html">HoltWinterChannelVisitor</a>{}</td>
+      <td title="Calculates rolling Parkinson volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ParkinsonVolVisitor.html">ParkinsonVolVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Hull moving averages">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HullRollingMeanVisitor.html">HullRollingMeanVisitor</a>{}</td>
+      <td title="Calculates rolling Ulcer Index">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/UlcerIndexVisitor.html">UlcerIndexVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Hurst exponent">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HurstExponentVisitor.html">HurstExponentVisitor</a>{}</td>
+      <td title="Calculates rolling Yang Zhang volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/YangZhangVolVisitor.html">YangZhangVolVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling values of Inertia indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/InertiaVisitor.html">InertiaVisitor</a>{}</td>
+      <td title="These are volume based indicators" style="text-align:center;background-color:LightGrey;color:DarkBlue">Volume Based &nbsp;&nbsp; <font size="+3">&#128226;</font></td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Kaufman's adaptive moving average">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/KamaVisitor.html">KamaVisitor</a>{}</td>
+      <td title="Calculates Accumulation/Distribution (AD) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/AccumDistVisitor.html">AccumDistVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Keltner channels">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/KeltnerChannelsVisitor.html">KeltnerChannelsVisitor</a>{}</td>
+      <td title="Calculates Chaikin Money Flow (CMF) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ChaikinMoneyFlowVisitor.html">ChaikinMoneyFlowVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates moving average convergence/divergence oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/MACDVisitor.html">MACDVisitor</a>{}</td>
+      <td title="Calculates Ease Of Movement indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EaseOfMovementVisitor.html">EaseOfMovementVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Mass Index for high/low columns">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/MassIndexVisitor.html">MassIndexVisitor</a>{}</td>
+      <td title="Calculates On Balance Volume (OBV) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/OnBalanceVolumeVisitor.html">OnBalanceVolumeVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates On Balance Volume (OBV) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/OnBalanceVolumeVisitor.html">OnBalanceVolumeVisitor</a>{}</td>
+      <td title="Price Volume Trend (PVT) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/OnBalanceVolumeVisitor.html">PriceVolumeTrendVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Parabolic Stop And Reverse indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ParabolicSARVisitor.html">ParabolicSARVisitor</a>{}</td>
+      <td title="Calculates Volume Weighted Average Price and more">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VWAPVisitor.html">VWAPVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Parkinson volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ParkinsonVolVisitor.html">ParkinsonVolVisitor</a>{}</td>
+      <td title="Calculates Volume Weighted Bid-Ask Spread and more">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VWBASVisitor.html">VWBASVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates vectors of peaks and valleys">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PeaksAndValleysVisitor.html">PeaksAndValleysVisitor</a>{}</td>
+      <td title="These are oscillators" style="text-align:center;background-color:LightGrey;color:DarkBlue">Oscillators &nbsp;&nbsp; <font size="+3">&#127926;</font></td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Percentage Price Oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PercentPriceOSCIVisitor.html">PercentPriceOSCIVisitor</a>{}</td>
+      <td title="Calculates Balance of Power indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/BalanceOfPowerVisitor.html">BalanceOfPowerVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Pivot Points, Supports and Resistances indicators">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PivotPointSRVisitor.html">PivotPointSRVisitor</a>{}</td>
+      <td title="Calculates rolling values of Detrend Price Oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/DetrendPriceOsciVisitor.html">DetrendPriceOsciVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates Elder's Force Index (ERI) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EldersForceIndexVisitor.html">EldersForceIndexVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates moving average convergence/divergence oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/MACDVisitor.html">MACDVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates rolling Percentage Price Oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PercentPriceOSCIVisitor.html">PercentPriceOSCIVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
@@ -1214,35 +1226,43 @@ <H2 ID="2"><font color="blue">API Reference with code samples <font size="+4">&#
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Price Distance">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PriceDistanceVisitor.html">PriceDistanceVisitor</a>{}</td>
+      <td title="Calculates Relative Vigor Index indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RelativeVigorIndexVisitor.html">RelativeVigorIndexVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Price Volume Trend (PVT) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/OnBalanceVolumeVisitor.html">PriceVolumeTrendVisitor</a>{}</td>
+      <td title="Calculates Relative Strength Index">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RSIVisitor.html">RSIVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates psychological line">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/PSLVisitor.html">PSLVisitor</a>{}</td>
+      <td title="Calculates The Relative Strength Xtra from Jurik Research">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RSIVisitor.html">RSXVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Quantitative Qualitative Estimation Indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/QuantQualEstimationVisitor.html">QuantQualEstimationVisitor</a>{}</td>
+      <td title="Calculates The Relative Volatility Index from Jurik Research">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RSIVisitor.html">RVIVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rate of change">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RateOfChangeVisitor.html">RateOfChangeVisitor</a>{}</td>
+      <td title="Calculates rolling Ultimate Oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/UltimateOSCIVisitor.html">UltimateOSCIVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Relative Vigor Index indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RelativeVigorIndexVisitor.html">RelativeVigorIndexVisitor</a>{}</td>
+      <td title="These are momentum based indicators" style="text-align:center;background-color:LightGrey;color:DarkBlue">Momentum Based &nbsp;&nbsp; <font size="+3">&#x1F3C3;</font></td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates returns">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ReturnVisitor.html">ReturnVisitor</a>{}</td>
+      <td title="Calculates rolling Coppock curve">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/CoppockCurveVisitor.html">CoppockCurveVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling averages of max highs and min lows">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RollingMidValueVisitor.html">RollingMidValueVisitor</a>{}</td>
+      <td title="Calculates Ease Of Movement indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EaseOfMovementVisitor.html">EaseOfMovementVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates rolling values of Inertia indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/InertiaVisitor.html">InertiaVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates On Balance Volume (OBV) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/OnBalanceVolumeVisitor.html">OnBalanceVolumeVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
@@ -1258,39 +1278,43 @@ <H2 ID="2"><font color="blue">API Reference with code samples <font size="+4">&#
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Sharpe or Sortino ratio">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/SharpeRatioVisitor.html">SharpeRatioVisitor</a>{}</td>
+      <td title="Calculates rolling Triple Exponential Average return">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/TrixVisitor.html">TrixVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates slope of the diff">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/SlopeVisitor.html">SlopeVisitor</a>{}</td>
+      <td title="Calculates rolling Williams %R">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/WilliamPrcRVisitor.html">WilliamPrcRVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates T3 moving average">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/T3MovingMeanVisitor.html">T3MovingMeanVisitor</a>{}</td>
+      <td title="These are time-series smoothers" style="text-align:center;background-color:LightGrey;color:DarkBlue">Smoothers &nbsp;&nbsp; <font size="+3">&#128202;</font></td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Treynor ratio">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/SharpeRatioVisitor.html">TreynorRatioVisitor</a>{}</td>
+      <td title="Calculates Ehler's Super Smoother Filter (SSF) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EhlerSuperSmootherVisitor.html">EhlerSuperSmootherVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Triple Exponential Average return">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/TrixVisitor.html">TrixVisitor</a>{}</td>
+      <td title="Calculates Holt-Winter Channels (HWC) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HoltWinterChannelVisitor.html">HoltWinterChannelVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates true price range based on low, high, close">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/TrueRangeVisitor.html">TrueRangeVisitor</a>{}</td>
+      <td title="Calculates Hull moving averages">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HullRollingMeanVisitor.html">HullRollingMeanVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Trade To Market trend indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/TTMTrendVisitor.html">TTMTrendVisitor</a>{}</td>
+      <td title="Calculates Kaufman's adaptive moving average">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/KamaVisitor.html">KamaVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Ulcer Index">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/UlcerIndexVisitor.html">UlcerIndexVisitor</a>{}</td>
+      <td title="Calculates rolling averages of max highs and min lows">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/RollingMidValueVisitor.html">RollingMidValueVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Ultimate Oscillator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/UltimateOSCIVisitor.html">UltimateOSCIVisitor</a>{}</td>
+      <td title="Calculates T3 moving average">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/T3MovingMeanVisitor.html">T3MovingMeanVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates rolling Triple Exponential Average return">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/TrixVisitor.html">TrixVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
@@ -1298,28 +1322,57 @@ <H2 ID="2"><font color="blue">API Reference with code samples <font size="+4">&#
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Vertical Horizontal Filter (VHF) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VertHorizFilterVisitor.html">VertHorizFilterVisitor</a>{}</td>
+      <td title="Calculates Arnaud Legoux Moving Average">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ArnaudLegouxMAVisitor.html">ArnaudLegouxMAVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Vortex trading indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VortexVisitor.html">VortexVisitor</a>{}</td>
+      <td title="These are volatility based indicators" style="text-align:center;background-color:LightGrey;color:DarkBlue">Trends &nbsp;&nbsp; <font size="+3">&#8598;</font></td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Volume Weighted Average Price and more">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VWAPVisitor.html">VWAPVisitor</a>{}</td>
+      <td title="Calculates Average Directional Movement Index (ADX)">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/AvgDirMovIdxVisitor.html">AvgDirMovIdxVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates Volume Weighted Bid-Ask Spread and more">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VWBASVisitor.html">VWBASVisitor</a>{}</td>
+      <td title="Calculates rolling Commodity Channel Index">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/CCIVisitor.html">CCIVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Williams %R">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/WilliamPrcRVisitor.html">WilliamPrcRVisitor</a>{}</td>
+      <td title="Calculates rolling Ehlers' Center of Gravity indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/CenterOfGravityVisitor.html">CenterOfGravityVisitor</a>{}</td>
     </tr>
 
     <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
-      <td title="Calculates rolling Yang Zhang volatility">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/YangZhangVolVisitor.html">YangZhangVolVisitor</a>{}</td>
+      <td title="Calculates rolling Choppiness Index indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ChopIndexVisitor.html">ChopIndexVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates Even Better Sine Wave (EBSW) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/EBSineWaveVisitor.html">EBSineWaveVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates Elder Ray Index (ERI) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ElderRayIndexVisitor.html">ElderRayIndexVisitor</a>{}</td>
     </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates Heikin Ashi candles">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/HeikinAshiCndlVisitor.html">HeikinAshiCndlVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Price Volume Trend (PVT) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/OnBalanceVolumeVisitor.html">PriceVolumeTrendVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates Parabolic Stop And Reverse indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/ParabolicSARVisitor.html">ParabolicSARVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates Trade To Market trend indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/TTMTrendVisitor.html">TTMTrendVisitor</a>{}</td>
+    </tr>
+
+    <tr class="item" onmouseover="this.style.backgroundColor='#ffff66';" onmouseout="this.style.backgroundColor='#d4e3e5';">
+      <td title="Calculates Vertical Horizontal Filter (VHF) indicator">struct <a href="https://htmlpreview.github.io/?https://github.com/hosseinmoein/DataFrame/blob/master/docs/HTML/VertHorizFilterVisitor.html">VertHorizFilterVisitor</a>{}</td>
+    </tr>
+
   </table>
   </div>
 
diff --git a/package.json b/package.json
index a87b7c84..6c5ddce4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "DataFrame",
-  "version": "3.2.0",
+  "version": "3.3.0",
   "homepage": "https://github.com/hosseinmoein/DataFrame",
   "repository": "github:hosseinmoein/DataFrame",
   "author": "Hossein Moein <myseajune@aol.com>",