Dot indexing is not supported for variables of this type Error

Hello,

I am trying to run this loop in a function

for i = 1:1:size(GlobalMeshonBody_1,1)
nE =size(GlobalMeshonBody_1(i).IndividualStiffnessMatrix,2);
end 

and I am getting this error:

"Dot indexing is not supported for variables of this type."

But if I run the above loop in the main script, I get no errors at all...

The answer is get is

nE = 7;

Does anyone know?

[Walter Roberson]

Time to use the debugger

dbstop if error

then run the code. When it stops due to the error, examine class(GlobalMeshonBody_1)

[Chris Dan]

I dont understand what you are trying to say...

Thsi is my struct it should run, but it isnt....

Answer 1

[Harsha Priya Daggubati]

As mentioned in the comments, Can you put a breakpoint for the line where the error is being thrown.

Refer to this link and check if this helps:

https://www.mathworks.com/matlabcentral/answers/423321-error-dot-indexing-is-not-supported-for-variables-of-this-type-when-initializing-an-array

[Nomel Simmons]

I am having this same exact error can someone please help its URGENT

[Voss]

Since BW_mat comes from readmatrix(), BW_mat is a matrix. Therefore, try replacing "BW_mat.obj_matrix" with "BW_mat".

That is to say:

BW_mat = readmatrix('GestureU_Kalman.txt');

for jj = 1:size(BW_mat,3)
    
    BW = BW_mat(:,:,jj);
    s = regionprops(BW, 'centroids');
    
    % etc.