Repeat each page of 3d matrix 24 times
2 views (last 30 days)
Show older comments
So as part of a script I have:
totmelt(:,:,day)=daymelt2;
Daymelt2 is a 2d matrix, and day is the day of the year (1:365). As it stands I get a 3d matrix with 365 in the 3rd dimension, or 365 pages. But I need the output for each day to be repeated 24times in consecutive pages. So the first 24 pages are the first daymelt2 matrix, the next 24 the the second daymelt2 matrix.
Is there a way I can do this? Without post-processing by extracting every single page and using repmat.
Thank you
2 Comments
Walter Roberson
on 29 Apr 2013
So you want the output to be size(daymelt2,1) x size(daymelt2,2) x 365 x 24 ? Or size(daymelt2,1) x size(daymelt2,2) x (365*24) ?
Accepted Answer
Jan
on 29 Apr 2013
Perhaps you want:
totmelt = repmat(daymelt2, 1, 1, 24*365);
Or:
totmelt = zeros(M, N, 24, 365); % With matchin M and N
...
totmelt(:, :, :, day) = repmat(daymelt2, 1, 1, 24);
...
totmelt = reshape(totmelt, M, N, 24*365);
2 Comments
Bård Skaflestad
on 29 Apr 2013
As you only need to repeat each page a fixed (and equal) number of times, you can also do something like this:
totmelt = % construct as normal
p = reshape(repmat(1:365, [24, 1]), [], 1);
totmelt = totmelt(:,:,p);
More Answers (1)
See Also
Categories
Find more on Creating and Concatenating Matrices in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!