meta {matrixset}

Matrixset group metadata

Description

• row_group_meta() and column_group_meta() returns the grouping structure, in a data frame format. See dplyr's dplyr::group_data(), from which the functions are based. Returns NULL for ungrouped matrixsets.

• row_group_keys() and column_group_keys() retrieve the grouping data, while the locations (row or column indices) are retrieved with row_group_where() and column_group_where().

• row_group_indices() and column_group_indices() each return an integer vector the same length as the number of rows or columns of .ms, and gives the group that each row or column belongs to.

• row_group_vars() and column_group_vars() give names of grouping variables as character vector; row_groups() and column_groups() give the names as a list of symbols.

Usage

row_group_meta(.ms)

row_group_vars(.ms)

row_group_keys(.ms)

row_group_where(.ms)

row_group_indices(.ms)

row_groups(.ms)

column_group_meta(.ms)

column_group_vars(.ms)

column_group_keys(.ms)

column_group_where(.ms)

column_group_indices(.ms)

column_groups(.ms)

Arguments

.ms

a matrixset object