Dummyvar

This Julia package allows to create a matrix of zeros and ones from a vector of groups. It reproduces the Matlab's function dummyvar.

The input type must be a Vector. The output matrix has a number of columns equal to the number of unique groups contained in the vector, and the ones indicate those groups.

To use the package, type in the Julia REPL

Pkg.add("Dummyvar")
using Dummyvar

The function dummycreate creates the matrix of zeros and ones. Here are some examples

dummycreate([1.0, 2.0])

2×2 Matrix{Float64}:
 1.0  0.0
 0.0  1.0

dummycreate(['a', 'b'])

2×2 Matrix{Float64}:
 1.0  0.0
 0.0  1.0
 
dummycreate([1, 'a', 'b'])

3×3 Matrix{Float64}:
 1.0  0.0  0.0
 0.0  1.0  0.0
 0.0  0.0  1.0
 
dummycreate([1, 'a', 'b', 1])

4×3 Matrix{Float64}:
 1.0  0.0  0.0
 0.0  1.0  0.0
 0.0  1.0  0.0
 1.0  0.0  0.0