Add 'Displaying all intersections' example

NAMESPACE

@@ -33,6 +33,7 @@ importFrom(ggplot2,Stat)
 importFrom(ggplot2,aes)
 importFrom(ggplot2,aes_)
 importFrom(ggplot2,aes_string)
+importFrom(ggplot2,alpha)
 importFrom(ggplot2,coord_flip)
 importFrom(ggplot2,element_blank)
 importFrom(ggplot2,expr)

NEWS.md

@@ -13,7 +13,7 @@ Changes:
 
 New features:
 - Annotations can now access data for any of the available modes by adding `upset_mode()` layer. By default the annotations are given data corresponding to the same mode as the mode of the passed in the `upset()` call.
-- It is now possible to display all intersections, even if those are not present in the data by passing `intersections='all'` to `upset()`; this is only feasible for <20 sets, but filtering by degree can allow to explore a subset of all intersections when there are many more sets
+- It is now possible to display all intersections, even if those are not present in the data by passing `intersections='all'` to `upset()`; this is only feasible for <20 sets, but filtering by degree can allow to explore a subset of all intersections when there are many more sets; this is only useful for modes different from the default exclusive intersection.
 - If filtering leads to no intersections, an informative error is shown (#80)
 
 

R/data.R

@@ -231,7 +231,7 @@ binary_grid = function(n, m) {
 #' @param mode region selection mode for sorting and trimming by size. See `get_size_mode()` for accepted values.
 #' @param size_columns_suffix suffix for the columns to store the sizes (adjust if conflicts with your data)
 #' @param encode_sets whether set names (column in input data) should be encoded as numbers (set to TRUE to overcome R limitations of max 10 kB for variable names for datasets with huge numbers of sets); default TRUE for upset() and FALSE for upset_data().
-#' @param intersections whether only the intersections present in data (`observed`, default), or all intersections (`all`) should be computed; using all intersections for a high number of sets is not computationally feasible - use `min_degree` and `max_degree` to narrow down the selection
+#' @param intersections whether only the intersections present in data (`observed`, default), or all intersections (`all`) should be computed; using all intersections for a high number of sets is not computationally feasible - use `min_degree` and `max_degree` to narrow down the selection; this is only useful for modes different from the default exclusive intersection.
 #' @param max_combinations_n the limit preventing accidental use of `intersections='all'` with a high number of sets
 
 #' @export