Convert confusion matrices and tables to frequency matrices

Convert confusion matrices and tables to frequency matrices

as.frequency.matrix(confusion_matrix)

Arguments

confusion_matrix

a matrix or table object that can be assumed to be a confusion matrix.

Value

a frequency matrix normalizing by the column total (expresed as percentages)

Examples

table(1:3, 3:1)
#>    
#>     1 2 3
#>   1 0 0 1
#>   2 0 1 0
#>   3 1 0 0
#   1 2 3
# 1 0 0 1
# 2 0 1 0
# 3 1 0 0
as.frequency.matrix(table(1:3, 3:1))
#>    
#>       1   2   3
#>   1   0   0 100
#>   2   0 100   0
#>   3 100   0   0
#
#     1   2   3
# 1   0   0 100
# 2   0 100   0
# 3 100   0   0
as.frequency.matrix(table(c(3,3,2), 3:1))
#>    
#>       1   2   3
#>   2 100   0   0
#>   3   0 100 100
#
#     2   3
# 1 100   0
# 2   0 100
# 3   0 100