focus {corrr}

Focus on section of a correlation data frame.

Description

Convenience function to select a set of variables from a correlation matrix to keep as the columns, and exclude these or all other variables from the rows. This function will take a correlate correlation matrix, and expression(s) suited for dplyr::select(). The selected variables will remain in the columns, and these, or all other variables, will be excluded from the rows based on 'same. For a complete list of methods for using this function, see select.

Usage

focus(x, ..., mirror = FALSE)

focus_(x, ..., .dots, mirror)

Arguments

x

cor_df. See correlate.

...

One or more unquoted expressions separated by commas. Variable names can be used as if they were positions in the data frame, so expressions like 'x:y“ can be used to select a range of variables.

mirror

Boolean. Whether to mirror the selected columns in the rows or not.

.dots

Use focus_ to do standard evaluations. See select.

Value

A tbl or, if mirror = TRUE, a cor_df (see correlate).

Examples

library(dplyr)
x <- correlate(mtcars)
focus(x, mpg, cyl) # Focus on correlations of mpg and cyl with all other variables
focus(x, -disp, -mpg, mirror = TRUE) # Remove disp and mpg from columns and rows

x <- correlate(iris[-5])
focus(x, -matches("Sepal")) # Focus on correlations of non-Sepal
# variables with Sepal variables.