MATLAB: Passing a 3d matrix to a function

communicationdigital signal processing

hi…………. can anyone help how pass a 3d array/matrix to a function i have the input to the function is papro which is 2x32x2 , type is double, i need to pass m x n x p matrix. i am using ccdf as my function to plot the graph. i am getting the error message as Undefined function 'colon' for input arguments of type 'double' and attributes 'full 3d real'.
Error in ccdf (line 21)
range=min(x):step:max(x);
Error in mimo_pts (line 98)
[cy,cx]=ccdf(papro,0.1);

Best Answer

Abdul - first, you didn't have to delete your previous question and repost. Just edit the existing one.
As for ccdf, are you using this https://www.mathworks.com/matlabcentral/fileexchange/33029-complementary-cumulative-distibution-function) from the File Exchange? I suspect that you are given that I observe the same error with some random input data. The problem is with the line
 range=min(x):step:max(x);
in that min and max are returning multi-dimensional arrays rather than the presumably expected scalar values (see min for details on why it is behaving as it does). If you want the minimum or maximum across all elements in x, just replace the above line with
 range=min(x(:)):step:max(x(:));
While this will prevent the error from occurring, I can't guarantee that it will provide you with the correct result.
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