separate_data: separate_data

In JeremyGillard/somar: Somatotopy R tools

Description

Splits a dataframe in half and returns a new dataframe whose column names match a certain naming pattern.

Usage

separate_data(dataframe, column_regex_pattern, inverse = FALSE)

Arguments

dataframe	a dataframe.
column_regex_pattern	character string containing a regular expression that represente the column selection. If an empty chain is passed the dataframe will be returned intact.
inverse	logical. The function returns the inverse of the result if this parameter is set to true.

Details

separate_data splits a dataframe in half according to the names of the columns. This function returns a new dataframe whose column names match a certain naming pattern. Its behaviour can also be reversed. It is based on column selection using the grep function. See documentation grep function for more information about regex.

Value

returns a part of the original dataframe

Examples

A_column <- c(1, 2, 3)
B_column <- c(4, 5, 6)
C_column <- c(7, 8, 9)
df <- data.frame(A_column, B_column, C_column)

Bs <- separate_data(df, "^B")
notBs <- separate_data(df, "^B", inverse = TRUE)

JeremyGillard/somar documentation built on March 19, 2021, 10:50 a.m.