How to create a structure of matrices within a loop

조회 수: 6 (최근 30일)
Joanna Przeworska
Joanna Przeworska 2021년 3월 2일
댓글: Joanna Przeworska 2021년 3월 3일
Dear all,
Using the following code, I would like to create a structure containing 3 matrices that are the result of a loop. I want these matrices to be named within this structure, e.g. 'A', 'B' and 'C'. What should I improve in my code?
for s0 = 1:3
matrixOfCodes = cell(size(matrixOfNames,2), length(codePart1));
for s1 = 1:size(matrixOfNames,2)
for s2 = 1:length(codePart1)
fullPath = strcat(codePart1{s2}, matrixOfNames{s0,s1}, codePart2{s2});
matrixOfCodes{s1, s2} = fullPath;
end
end
m{s0} = matrixOfCodes;
matrixOfCodes = [];
end

채택된 답변

Stephen23
Stephen23 2021년 3월 2일
편집: Stephen23 2021년 3월 2일
C = {'A','B','C'};
S = struct();
for k = 1:numel(C)
S.(C{k}) = whatever
end
Note that accessing data like this may be less convenient than simply using the existing arrays and indexing.

추가 답변 (1개)

Joanna Przeworska
Joanna Przeworska 2021년 3월 2일
Dear Stephen,
Thank you for your response, however when I implement your idea I get an error: 'Argument to dynamic structure reference must evaluate to a valid field name'. My code now look like the one below:
database = {'A','B','C'};
m = struct();
for s0 = 1:numel(database)
matrixOfCodes = cell(size(matrixOfNames,2), length(codePart1));
for s1 = 1:size(matrixOfNames,2)
for s2 = 1:length(codePart1)
fullPath = strcat(codePart1{s2}, matrixOfNames{s0,s1}, codePart2{s2});
matrixOfCodes{s1, s2} = fullPath;
end
end
m.(database) = matrixOfCodes;
end
  댓글 수: 2
Stephen23
Stephen23 2021년 3월 2일
@Joanna Przeworska: I fixed my answer. You will need this:
m.(database{s0}) = ..
% ^^^^ index
Joanna Przeworska
Joanna Przeworska 2021년 3월 3일
Dear Stephen,
The code works now exactly as I expected. Thank you very much!
Kind regards,
Joanna

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