No of ways of selecting r objects from n distinct objects, allowing repeated selections
96344
Combination with repetitions.
45139
how i select min and max values from dataset
83044
Spatial subsetting SpatialPolygonsDataFrames completely within selecting area using R
60419
Randomly selecting elements without repetition
10550
How to randomly select an item from a list?
142016
one to one distinct restriction on selection
18992
How do I join several objects into one?
70637
Selecting items in a list based on multiple conditions
30763
Having trouble making a list of lists of a designated size
92696
Illustrator CS6: select only objects fully contained in selection rectangle
153174
How can I get every distinct size-n combination of a list?
61306
Why do I get "warning longer object length is not a multiple of shorter object length"?
6493
Repeat each row of data.frame the number of times specified in a column
142258
How can I count unique selections from multiple selections in a drop down list (Excel)
117041
How can I automatically group each shape with the text inside it for a huge collection of rectangles?
105892
Selective and bunched entries to list of figures
67785
Creating duplicate features based on many-to-one conversion of related table?