Question

I have following data matrix in Matlab, I am trying to actually split this into multiple segments by passing a variable to a matlab function. But before splitting I would like to shuffle the matrix. The size of my matrix is 150X4

s.data
5.1000    3.5000    1.4000    0.2000
4.9000    3.0000    1.4000    0.2000
4.7000    3.2000    1.3000    0.2000
4.6000    3.1000    1.5000    0.2000
5.0000    3.6000    1.4000    0.2000
..

s = 

  data: [150x4 double]
labels: [150x1 double]

Coming from R environment I find MatLab is very strange. Initially I thought the columns in matrix has a relationshop like in a R dataframe but thats wrong in my assumption.

Answer 1

or you can do:

 perm=randperm(numel(data)); % generate a random permutation
 data = reshape(data(perm),size(data)); % apply it to data