horzcat CAT arguments dimensions are not consistent.

I have problem with my code.

??? Error using ==> horzcat CAT arguments dimensions are not consistent.

Error in ==> rozpoznawanie_dzwiekowPerc at 209 mfcc_kaszel = [mfcc_kaszel; [c sp_bw sp_centroid sp_rolloff shortte zerocr]];

[AJ von Alt]

Can you post your code? Make sure that each vector your are trying to concatenate has the same number of rows. Errors like this usually happen when you try to concatenate a row vector with a column vector.

Answer 1

[Image Analyst]

I'm not sure if you want an 82 row by 18 column array as the output, or a 18 row by 82 column array, so here is how to do it both ways:

% Define sample data for testing.
mfcc_kaszel = [];
c  = ones(82,13);      
shortte = ones( 82,1);
sp_bw  = ones( 1,82);
sp_centroid = ones(1,82);
sp_rolloff = ones( 1,82); 
zerocr = ones(82,1);

% Make 82 row by 18 column matrix.
mfcc_kaszel = [mfcc_kaszel; [c, sp_bw', sp_centroid', sp_rolloff', shortte, zerocr]];

% Make 18 row by 82 column matrix.
mfcc_kaszel2 = [c'; sp_bw; sp_centroid; sp_rolloff; shortte'; zerocr'];

[Monika]

What's wrong?

??? Error using ==> horzcat
CAT arguments dimensions are not consistent.

Error in ==> rozpoznawanie_dzwiekowP at 211
         mfcc_krzyk = [mfcc_krzyk; [c, sp_bw', sp_centroid', sp_rolloff',
         shortte, zerocr]];

[Image Analyst]

Like I said, I'm not sure what you want, so try it the second way I showed you.

% Make 18 row by 82 column matrix.
mfcc_kaszel = [c'; sp_bw; sp_centroid; sp_rolloff; shortte'; zerocr'];

[Monika]

I think that I know where is the problem. The problem is that the dimensions of sp_bw, sp_centroid and sp_rolloff, c shortte and zerocr aren't the same dimencions. I don't know why program showed before something different.

K>> size(mfcc_kaszel)
ans =
    82    18
K>> size(c)
ans =
    51    13
K>> size(sp_centroid')
ans =
    51     1
K>> size(shortte)
ans =
    51     1
K>> size(zerocr)
ans =
    51     1
K>> size(sp_bw')
ans =
    82     1
K>> size(sp_rolloff')
ans =
    82     1

[Image Analyst]

So I think you'd better track down why the sizes are not at all what you expect.

[Monika]

If I ignore sp_bw sp_rolloff. My program works. But how can I add sp_bw and sp_rolloff ?

Answer 2

[Amit]

The problem is in

[mfcc_kaszel; [c sp_bw sp_centroid sp_rolloff shortte zerocr]]

[c sp_bw sp_centroid sp_rolloff shortte zerocr] is a 1x3 matrix. Unless mfcc_kaszel is nx3 matrix this operation in not allowed.

what is the dimension of mfcc_kaszel?

[Amit]

Once you have run this code and got the error, do the following and post your result.

whos mfcc_kaszel c sp_bw sp_centroid sp_rolloff shortte zerocr

[Monika]

My result:

 Name              Size            Bytes  Class     Attributes

c                82x13             8528  double              
mfcc_kaszel       0x0                 0  double              
shortte          82x1               656  double              
sp_bw             1x82              656  double              
sp_centroid       1x82              656  double              
sp_rolloff        1x82              656  double              
zerocr           82x1               656  double

[Amit]

The problem is that the dimensions of sp_bw, sp_centroid and sp_rolloff are 1x82 while the same for c, shortte and zerocr are 82xn. mfcc_kaszel is a null vector so it doesn't matter.

I think you need to change the code like this:

mfcc_kaszel = [mfcc_kaszel; [c sp_bw' sp_centroid' sp_rolloff' shortte zerocr]];

which will work.