[SOLVED! - Two Errors: CAT arguments dimensions are not consistent - Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts ]
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Hi, I have this error problem while Matlab try running this function from a script (I've post only a part of it because the problem is here):
if binary(numseg).adfp==incrocio(1:length(binary(numseg).adfp));
x=[binary(numseg).firstpoint' ; midpoint];
varx=(binary(numseg).raggiofp/3)^2;
vary=varx;
elseif binary(numseg).adsp==incrocio(1:length(binary(numseg).adsp));
x=[binary(numseg).secondpoint' ; midpoint];
varx=(binary(numseg).raggiosp/3)^2;
vary=varx;
end
vartheta=Pstima(3,3,tstar);
P=[varx 0 0 ; 0 vary 0 ; 0 0 vartheta];
xstimawall=x;
Pstimawall=P;
Pstima(:,:,tstar)=P;
Pplot(:,:,tstar)=P;
Xstima(:,tstar) = x;
Xplot(:,tstar)=x;
Note that Pstima is a 3D Array of 3x3 matrix and tstar is a scalar index between 1 and length(Pstima)
- First error: If I try running the function I have this error:
??? Error using ==> horzcat CAT arguments dimensions are not consistent.
Error in ==> startekfreprocessing at 87 P=[varx , 0 , 0 ; 0 , vary , 0 ; 0 , 0 , vartheta];
The problem is in vartheta. The variable appears to be a scalar but if I print vartheta and P on screen(I haven't put the ";" in vartheta and P):
vartheta =
0.0100
P =
3.0044 0 0
0 3.0044 0
0 0 0.0100
vartheta(:,:,1) =
0.0100
vartheta(:,:,2) =
0.0100
Why Mathlab print vartheta first like a scalar and then like a 3D Array of 2 1x1 matrix???
- Second error: If I try to solve the problem in this way:
P=[varx , 0 , 0 ; 0 , vary , 0 ; 0 , 0 , vartheta(1,1)]; (%% horzcat with vartheta(1,1) instead of vartheta)
Mathlab gave me this error:
??? Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts
Error in ==> startekfreprocessing at 91 Pstima(:,:,tstar)=P;
...and print this on the screen:
vartheta =
0.0100
P =
3.0044 0 0
0 3.0044 0
0 0 0.0100
vartheta(:,:,1) =
0.0100
vartheta(:,:,2) =
0.0100
P =
3.0044 0 0
0 3.0044 0
0 0 0.0100
Please help me! Thank you so much...
3 Comments
dpb
on 10 Jul 2013
what do
size(tstar) size(vartheta)
return?
Also clear the workspace and try again; you may have the results of a previous typo hanging around.
The second case--if there's a size problem w/ [...] then horzcat() is going to have the same problem so there's no point in trying to finesse your way around a dimensions mismatch error.
Francesco
on 11 Jul 2013
Accepted Answer
Image Analyst
on 11 Jul 2013
If Pstima is a 3D array where each plane is 3x3, and tstar is a scalar, then if you define vartheta according to
vartheta=Pstima(3,3,tstar);
vartheta will be one 3x3 plane out of Pstima. size() should report that, not 1x1. Are you sure you didn't redefine size()? What does this say
which -all size
whos vartheta
More Answers (1)
Please type this in the command window:
Pstima = rand(3, 3, 5);
tstar = 2;
vartheta = Pstima(3, 3, tstar);
whos('vartheta')
vartheta(:,:,1)
vartheta(:,:,2)
If this shows the expected behavior, insert it into the code and check, what might be the difference.
I'm convinced, that there is a 100% not magic explanation for this behavior. Either you type "whos vartheta" and "vartheta(:,:,1)" in different workspaces, or the DISP or DISPLAY functions are shadowed, or a similar trick.
1 Comment
Francesco
on 11 Jul 2013
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