minmax: Minmax Normalization
In gbasulto/drewcurves: Produce fast Andrews plots with 'ggplot2'

Description Usage Arguments Details Value Author(s) Examples

For each column of a matrix, it substracts its minimum and divide by the length of its range

1	minmax(mat)

mat

A numeric matrix.

An error is returned if there is at least one column whose values are all the same.

The normalized matrix, with a vector with ' column minimums and a vector with the column range lengths as attributes.

Guillermo Basulto-Elias

mat <- matrix(c(0, 1, 2,
                3, 4, 5,
                3, 2, 1),
                nrow = 3, byrow = TRUE)
  drewcurves:::minmax(mat)
  
## Not run: 
mat <- matrix(c(0, pi, 1, 2,
                3, pi, 4, 5,
                3, pi, 2, 1),
                nrow = 3, byrow = TRUE)
drewcurves:::minmax(mat)
  
## End(Not run)