%primes%                Find remainder from 'primes' method.
%staircase%             Find remainder from 'staircase' method.
all_groups_identical    Test if two grouping factors contain the same
                        groups.
balance                 Balance groups by up- and downsampling.
differs_from_previous   Find values in a vector that differ from the
                        previous value.
downsample              Downsampling of rows in a data frame.
find_missing_starts     Find start positions that cannot be found in
                        data.
find_starts             Find start positions of groups in data.
fold                    Create balanced folds for cross-validation.
group                   Create groups from your data.
group_factor            Create grouping factor for subsetting your
                        data.
groupdata2              groupdata2: A package for creating groups from
                        data
partition               Create balanced partitions.
splt                    Split data by a range of methods.
upsample                Upsampling of rows in a data frame.
