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

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.

[CalebJones]

if isfield(nirsInfo.RawDataInfo,'checking') is the correct syntax

Answer 1

[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