save a three dimensional matrix
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How can i save a three dimensional matrix. The following does not work
for b=1:size(GP,3);
Q(:,:,b)=wtpt*GP(:,:,b);
save('G:\.........\Q.txt','Q','-ASCII','-double');
end
Thanks
采纳的回答
Titus Edelhofer
2012-8-16
Hi,
you have two options: one would be to save the individual slices
for b=1:size(GP, 3)
Q(:,:, b) = wtpt*GP(:,:,b);
A = Q(:,:,b);
save(sprintf('G:\Q_%d.txt', b), 'A', '-ASCII', '-double');
end
The alternative would be to use reshape to make it a 2D matrix, and when you load it, reshape it back to a 3D matrix. It depends what you need the ascii output for.
Titus
4 个评论
Fariba
2012-8-16
Piyush Menro
2020-9-4
What is 'G: here in the last line before end statement. I also want to save multiple three dimenssional matrixes
Walter Roberson
2020-9-4
G: in this context is the drive letter that the original poster was using to save the file.
Walter Roberson
2020-9-4
编辑：Walter Roberson
2020-9-4
None of the following support saving 3d matrices in 3d form:
- save -ascii
- dlmwrite
- xlswrite
- writetable, writematrix, writecell
- imwrite for most image types
The following are some of the formats that support saving 3d matrices as 3d:
- save (not -ascii)
- Tiff class
- dicomwrite
- imwrite for a few image formats such as tiff
- EDF file format support
- HDF file format support
- json
更多回答（1 个）
luchen li
2017-11-2
Hi, what does the wtpt* in
Q(:,:, b) = wtpt*GP(:,:,b) ; means?
1 个评论
Walter Roberson
2017-11-2
That is something form the user's original code. We do not have any information on what the user was attempting to compute back then. It is not relevant to the matter of saving 3D arrays: it just illustrates how the user was constructing the 3D array.
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