VERTCAT error when trying to populate array

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Teshan Rezel
Teshan Rezel 2021년 7월 3일
댓글: Teshan Rezel 2021년 7월 7일
Hi folks,
I am trying to write some fata into an array, which I will then write to excel. I get the VERTCAT error when trying to create the array (Error using vertcat Dimensions of arrays being concatenated are not consistent).
Can you help identify why this is please?
Each column of data should be 256 elements long.
My code is as follows:
headings = {'Pixel Value', 'R', 'G', 'B', 'Grey'};
pixelValue = (0:255)';
allCoke_R = imhist(allCokeMask(:,:,1));
allCoke_G = imhist(allCokeMask(:,:,2));
allCoke_B = imhist(allCokeMask(:,:,3));
allCokeGrey = imhist(rgb2gray(allCokeMask));
dataCollectionAllCoke = zeros(257, 5);
dataCollectionAllCoke = [headings; pixelValue, allCoke_R, allCoke_G, allCoke_B, allCokeGrey];
writecell(dataCollectionAllCoke, resultsPath, 'Sheet', nameStringExcel, "Range", 'A1');

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Jonas
Jonas 2021년 7월 3일
try putting {} around the second line of concatenation
dataCollectionAllCoke = [headings; {pixelValue, allCoke_R, allCoke_G, allCoke_B, allCokeGrey}];
or convert all variable entries to cells
dataCollectionAllCoke = [headings;num2cell([pixelValue, allCoke_R, allCoke_G, allCoke_B, allCokeGrey])];
both should work concerning the concatenation, but i am not sure about the needed format for the writematrix() command
  댓글 수: 4
Teshan Rezel
Teshan Rezel 2021년 7월 7일
@Jonas this works, thank you!

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