How to pass a “.mat” file as an argument of user defined function?
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am 30 Jan. 2016
Beantwortet: Walter Roberson
am 31 Jan. 2016
Please write demo code.
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Walter Roberson
am 31 Jan. 2016
function listvars(matfilename)
if ~ischar(matfilename) || ~exist(matfilename,'file')
error('argument must be the name of an existing file');
end
try
datastruct = load(matfilename);
catch
error('Failed in loading from file, might not be real .mat file');
end
fn = fieldnames(datastruct);
if isempty(fn)
fprintf('File loaded but it had no variables stored in it\n');
else
nv = length(fn);
fprintf('File "%s" contains the following %d variable(s)\n', matfilename, nv);
for K = 1 : nv
thisvarname = fn{K};
thiscontent = datastruct.(thisvarname);
fprintf('variable "%s", class "%s"\n', thisvarname, class(thiscontent));
end
end
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