Function input as a string

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Adrian
Adrian 2016-4-11
评论： Adrian 2016-4-12
Hi, I want to input a filename which is a string (filename = 'exceldata.xlsx') to the input of a function. Inside the function I would like to importdata with designated filename. The function is not processing the filename as 'exceldata.xlsx'
Example Code
filename = 'exceldata.xlsx;
function [a b] = readexcel (filename)
A = importdata(filename);

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回答（1 个）

Adam
Adam 2016-4-11
If you just give a filename with no path the file must be on your path. Generally you should give a full path to the file to be more robust.
You need to give more information than "is not processing" though. If you have an error message then post it in full, or give full details of whatever the problem is you get if it isn't an error.
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Jan
Jan 2016-4-11
@Adrian: As Adam has mentioned already, the error message means, that the file is not existing in the current folder. So add the folder excplicitly:
Folder = '???'
Filename = 'Matlab_Decrement_Data_415V_50H.xlsx';
File = fullfile(Folder, Filename);
and deliver File instead of Filename.
Adrian
Adrian 2016-4-12
Thank you Jan, the fullfile worked :-)

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