Count pattern-matches in each column of data frames

Source: R/global_search.R

Search a list of data frames for a pattern and count the number of matches in each column.

global_col_search_sum(df_lst, pattern)

Arguments

df_lst

A named list of data frames

pattern

The pattern to search for (regular expression)

Value

A named list of data frames where each column has the number of times that column matched the pattern.