MATLAB Answers

reshape function error on number of elements

20 views (last 30 days)
Andrew Alkiviades
Andrew Alkiviades on 14 Oct 2012
Hi I have the following code
The error appears on the line of "B", however I think that A has 8760 elements and B = 365 x 24 which also is 8760. What could be going wrong?
A = squeeze(hourly_surplus(1,1,1,:));
B = reshape(A,365,24);
Where size(A) = 8760 x 1
however I get the error
Error using reshape
To RESHAPE the number of elements must not change
Thanks

  1 Comment

Star Strider
Star Strider on 14 Oct 2012
This works fine for me:
hs = rand(4,4,4,8760);
A = squeeze(hs(1,1,1,:));
B = reshape(A, 365,24);
elms = [numel(hs); numel(A); numel(B)]
I suggest you set a breakpoint at the line that defines A and look at the workspace variables. Something obviously isn't working the way it should.

Sign in to comment.

Answers (1)

Wayne King
Wayne King on 14 Oct 2012
Edited: Wayne King on 14 Oct 2012
What do you mean, "you think"? How about just determining the exact size of A.
size(A)
then you will know exactly how big A is.

  4 Comments

Show 1 older comment
Wayne King
Wayne King on 14 Oct 2012
Something appears to be wrong somewhere because
A = randn(10,10,10,8760);
A = squeeze(A(1,1,1,:));
B = reshape(A,365,24);
should definitely work. Can you copy and paste the above code in your workspace and see that it works?
Andrew Alkiviades
Andrew Alkiviades on 14 Oct 2012
yes I have tried you example and it works!
Wayne King
Wayne King on 14 Oct 2012
Then something must be happening inside the program, as star strider suggested above set a breakpoint on the line
B = reshape(A, 365,24);
and then query
size(A)
at the command line, or hover your cursor over the variable A.

Sign in to comment.

Sign in to answer this question.


Translated by