Input type in classregtree : proper formatting

Hi all,

I want to perform a classification task with the "classregtree" function and my input variables, as well as my target, are all categorical variables. I think i followed instructions from the documentation package but i keep getting the following message :

>> t=classregtree(Pr,Target,'method','classification','categorical','[1 2 3 4 5 6 7 8 9 10 11 12 13 14]');
??? Error using ==> classregtree.classregtree>classregtree.preparedata at 234
X must be a matrix of floating-point numbers.

My input 'Pr' is a 14078 x 14 cell array and "Target" is a 14078 X 1 cell.

What step am i missing here ?

Any suggestions would be appreciated.

Thanks, from Rej.

Answer 1

[Walter Roberson]

The documentation for classregtree says, "X is an n-by-m matrix of predictor values." But you are trying to pass in Pr, a cell array rather than a (numeric) matrix.

Cell arrays are permitted for y, your Target, but only cell arrays of strings.