categorize {ecr}

Assign group membership based on another group membership.

Description

Given a data frame and a grouping column of type factor or character this function generates a new grouping column which groups the groups.

Usage

categorize(df, col, categories, cat.col, keep = TRUE, overwrite = FALSE)

Arguments

df

[data.frame]
Data frame.

col

[character(1)]
Column name of group variable.

categories

[list]
Named list. Names indicate the name of the category while the values are character vectors of values within the range of the col column.

cat.col

[character(1)]
Column name for categorization.

keep

[logical(1)]
Keep the source column col? Default is TRUE.

overwrite

[logical(1)]
If TRUE, cat.col is set to col.

Value

[data.frame] df = data.frame( group = c("A1", "A1", "A2", "A2", "B1", "B2"), perf = runif(6), stringsAsFactors = FALSE) df2 = categorize(df, col = "group", categories = list(A = c("A1", "A2"), B = c("B1", "B2")), cat.col = "group2")