Help inserting character information into matrix

Question

Dan.Albrecht 2015-2-9

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/176767-help-inserting-character-information-into-matrix

评论： Dan.Albrecht 2015-2-9

Hey everyone, pretty new user here, so I'm probably overlooking an easy solution. I'm trying to extract subject information (subject name=character and weight=number) into a two column matrix. Below is the code I've been trying to use:

Code
list=dir('C*0*');
weights={}
for m=1:length(list)
  cd(fullfile(list(m).name,'MR','MPRAGE'));
  dcmlist=list('*.dcm');
  A=dicominfo(dcmlist(m).name);
  weights{m,1}=list(m).name
  weights{m,2}=A.PatientWeight
    if true
      % code
    end
    clear A
end

What I can't understand, is that when I do this manually (insert one variable into the matrix at a time) it seems to work, but when I evaluate the code as a whole, I get the "matrix dimensions exceeded" error. I've tried creating separate empty cell matrices for subject name and weight, and also changed the way the data is appended (from {m,1} to {1,m}), all to no avail. Any help is greatly appreciated!