cormat_from_triangle makes a correlation matrix from a vector of the upper right triangle
cormat_from_triangle(cors)
| cors | the correlations among the variables as a vars\*(vars-1)/2 vector |
|---|
matrix
#> [,1] [,2] [,3] [,4] #> [1,] 1.0 0.2 0.3 0.4 #> [2,] 0.2 1.0 0.5 0.6 #> [3,] 0.3 0.5 1.0 0.7 #> [4,] 0.4 0.6 0.7 1.0