How to check for file existence in previous folder

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Allan Paolo
Allan Paolo 2021-10-4
回答： Image Analyst 2021-10-4
Hi.
I am fully aware of "exist" to check if a file exists in the same directory: ie. exist('kvals.mat', 'file') == 2 checks if kvals.mat exists in the same directory.
How do I do this if I want to check the existence of kvals.mat in the previous directory?

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采纳的回答

KSSV
KSSV 2021-10-4
exist('../filename')

更多回答（1 个）

Image Analyst
Image Analyst 2021-10-4
Construct the filename in the other/previous folder, and the use isfile() to see if it exists
otherFullFileName = fullfile(otherFolder, 'kvals.mat')
if isfile(otherFullFileName)
% File exists.
else
% File does not exist.
end

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