Apply function to subset of data frame
125441
How to select the rows with maximum values in each group with dplyr?
103178
Partially applying a function that has an implicit parameter
151959
Apply formula to a numeric part of cell value
49862
Aligning Data frame with missing values
25066
Adding a new column to each element in a list of tables or data frames
97533
How to find differences in elements of 2 data frames based on 2 unique identifiers
87873
AWK: Nested Conditional Subset of Rows
122392
Apply function conditionally
53735
How to do logistic regression subset selection?
3198
How to randomly subset X% of selected points?
10336
dplyr: "Error in n(): function should not be called directly"
39641
How to split a data frame?
66251
Find complement of a data frame (anti - join)
108807
Subset of a cartesian product
101367
How to randomly sample a subset of a file
119158
How to delete subsets quickly?
81170
How to replace NA with mean by group / subset?