Wanted to check if a variable exits or not within 'nirsinfo'.

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CalebJones
CalebJones 2019-10-22
回答： Sahithi Kanumarlapudi 2019-11-4
if exist(nirsInfo.RawDataInfo.checking,'var') == 1
disp("file exists");
else
disp("doesnt");
end
Here since the .checking doesn't exsist it throwing Reference to non-existent field 'checking' error.

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回答（1 个）

Sahithi Kanumarlapudi
‘isfield' can be used to check if a field exists within a structure.
Refer to the following documentation for more information on ‘isfield’
https://www.mathworks.com/help/matlab/ref/isfield.html

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