Subset Correlation Matrix

Subset Correlation Matrix

cor_select(x, ..., vars = NULL)

Arguments

x	a correlation matrix. Particularly, an object of class cor_mat.
...	One or more unquoted expressions (or variable names) separated by commas. Used to select variables of interest.
vars	a character vector containing the variable names of interest.

Value

a data frame

See also

cor_mat(), pull_triangle(), replace_triangle()

Examples

# Compute correlation matrix
#::::::::::::::::::::::::::::::::::::::::::
cor.mat <- mtcars %>%
  select(mpg, disp, hp, drat, wt, qsec) %>%
  cor_mat()

# Subsetting correlation matrix
#::::::::::::::::::::::::::::::::::::::::::

# Select some variables of interest
cor.mat %>%
  cor_select(mpg, drat, wt)
#> # A tibble: 3 x 4
#>   rowname   mpg  drat    wt
#>   <chr>   <dbl> <dbl> <dbl>
#> 1 mpg      1     0.68 -0.87
#> 2 drat     0.68  1    -0.71
#> 3 wt      -0.87 -0.71  1   

# Remove variables
cor.mat %>%
  cor_select(-mpg, -wt)
#> # A tibble: 4 x 5
#>   rowname  disp    hp   drat   qsec
#>   <chr>   <dbl> <dbl>  <dbl>  <dbl>
#> 1 disp     1     0.79 -0.71  -0.43 
#> 2 hp       0.79  1    -0.45  -0.71 
#> 3 drat    -0.71 -0.45  1      0.091
#> 4 qsec    -0.43 -0.71  0.091  1