Error using horzcat function

Dear all

i got this error

Error using horzcat

Dimensions of arrays being concatenated are not consistent.

Error in dmatrix (line 9)

sp3=reshape([se./sd 0],181,251,391);

the code is

clear
load sr1695.asc
load sr1698.asc
sd = sr1695;
se = sr1695;
%The following forms 3D matrices, then a 2D projection along Z which eliminates the Z dependence.

sd3=reshape([sd(1:17763520) 0],181,251,391);
sp3=reshape([se./sd 0],181,251,391);
sd2=squeeze(mean(sd3,3));
sp2=squeeze(mean(sp3,3));
p2=hist3([reshape(sd2,1,[])', reshape(sp2,1,[])'],'Nbins',[100,100]);

thank you

Answer 1

[Image Analyst]

se and sd are presumably arrays with exactly 181 * 251 * 391 elements. However 0 is not. You're going to have to make 0 an array with the same number of rows and columns if you're going to stitch it next to the ratio array.

[rows, columns,slices] = size(se)
if rows*columns*slices == (181 * 251 * 391)
    z = zeros(size(se));
    stitchedArray = [se./sd, z];
    sp3=reshape(stitchedArray, 181, 251, 391);
else
    message = sprintf('Wrong number of elements to reshape.\nRows = %d, columns = %d, slices = %d, and product = %d\nbut (181 * 251 * 391) = %.1f', ...
        rows, columns, slices, rows*columns*slices, (181 * 251 * 391));
    uiwait(errorsld(message));
    return;
end

[Ahmad Abbas]

thank you for the answer but why i am getting this error

Error in dmatrix (line 21)

uiwait(errorsld(message));

[Image Analyst]

Sorry, Typo. should be

uiwait(errordlg(message));

which will call the error dialog box. But since you go there, there is not the correct number of elements to resize it to that size. What is message? Paste it back here.

[Ahmad Abbas]

error dialog

Wrong number of elements to reshape

rows = 1776352, columns = 10, slices = 1 and product = 17763520

But (181*251*391) wrong number of elements tp reshape.

Rows = 17763521, Columns =

[Walter Roberson]

Yes? You added on a single zero to a vector, and now you are trying to reshape it back to the original size.

If you are going to add zeros, you need to do that for a complete row or complete column or complete page.