input parser on a cell array
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I have an input cell array example A = {'1234','4567','8901'}
I wish to user the input parser addParameter to check each entry is a string, and also each string is only composed of a set of 4 numbers
is there anyway in which to do this ? I have been searching Help and Answers but cannot find anything
Thank You
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You can implement a custom validationFcn to check your requirements, as you can read in the documentation.
A = {'1234','4567','8901'};
fcn = @(A) ...
iscellstr(A) && ...
size(vertcat(A{:}),2)==4 && ...
all(isstrprop([A{:}],'digit'));
fcn(A)
fcn({'1abc','1234'})
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fcn = @(A) ...
iscellstr(A) && ...
size(vertcat(A{:}),2)==4 && ... <- fails if the text have different lengths
all(isstrprop([A{:}],'digit'));
fcn({'a','1234'})
Perhaps:
all(cellfun(@length,A)==4)
From what I can tell from the documentation, a fail is interpreted as invalid input, so my function should work. Although it is indeed more elegant to have this function not fail.
If any of those chars is a column vector this code will still return an error.
So perhaps:
all(cellfun('size',A,2)==4) && all(cellfun('size',A,1)==1)
Paul Mitchell
2023-2-27
编辑：Paul Mitchell
2023-2-27
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