neuro 0 Newbie Poster

Hello all!!

I am new to MATLAB and am trying to do multidimensional scaling for some data I have. It is just a 24x24 correlation matrix and I keep getting an error message that it is not a square matrix, but it is!! I don't understand :/ I've been following the MDS tutorial here (http://www.mathworks.com/help/stats/multidimensional-scaling.html#briu08r-2) and just replaced the map example numbers with my numbers. I also added some more titles to 24 since the city example only had 10. But I get this error! I made sure I had a ; after each of the 24 rows, so it should be square. Any advice on what I could have done wrong?

??? Error using ==> cmdscale at 90
Not a valid dissimilarity or distance matrix.

Thank you!!

-neuro