how to read data from characters?

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Lilya
Lilya 2018-12-18
评论： Lilya 2018-12-19
Hi all,
I am trying to read the variables from the list of characters those are saved as .mat file 'attached screenshot.' each of those .mat file has sst, lat, lon. I could not find a proper way to get the data by using the for loop.
for N = 1:nfiles;
filename = [flist(N).name];
disp(['Processing ', flist(N).name]);
end
Any help will be appreciated :(
thanks
  1 个评论
Stephen23
Stephen23 2018-12-18
Note that square brackets are a concatenation operator in MATLAB, so they are completely redundent on this line (you are not concatenating anything):
filename = [flist(N).name];
https://www.mathworks.com/matlabcentral/answers/35676-why-not-use-square-brackets

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Stephen23
Stephen23 2018-12-18
编辑：Stephen23 2018-12-18
https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html
D = 'path of the directory where those files are saved';
S = dir(fullfile(D,'erdMH*.mat'));
for k = 1:numel(S)
T = load(fullfile(D,S(k).name));
S(k).lat = T.lat;
S(k).lon = T.lon;
S(k).sst = T.sst;
end
If the imported data have compatible sizes you could concatenate them into arrays, e.g.:
lat = [S.lat]
lon = [S.lon]
https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html
https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists
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Stephen23
Stephen23 2018-12-19
编辑：Stephen23 2018-12-19
"I want the final sst matrix separated"
I do not know what a "separated" matrix is. You can access the imported sst arrays:
  • directly from the non-scalar structure S, or
  • concatenating together (as I showed in my answer), or
  • by putting them into a cell array:
C = {S.sst}
Lilya
Lilya 2018-12-19
Thanks a lot !!! it works

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