delete the third dimension in 4D matrix

I am trying to delete the third dimension in 4D matrix

the (HM_all_Train1) is structure 1*12 struct and contains 4D matrices with size 120*120*1*6000, I am trying to delete the 3d dimension as the following but I am still getting 4D

for i = 1:12
    
Heat_Map =HM_all_Train1(i)
Sqeezed_HM_Temp =Heat_Map(:,:,1,:);
Sqeezed_HM(i,1) = squeeze(Sqeezed_HM_Temp); 

end

Answer 1

[Dyuman Joshi]

You are not accessing the data stored in the struct properly. You need to use the fieldname of the corresponding data to access the data.

An example would be -

for k=1:12
    structurename(k).fieldnameof4Ddata = squeeze(structurename(k).fieldnameof4Ddata);
end