How to use a variable as an 'importdata' string

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Alex
Alex 2017-7-25
评论： Alex 2017-7-25
The following line works fine.
unformatteddata = importdata('neutral.prf', DELIMITER, HEADERLINES);
When I make a variable with 'neutral.prf' as the string, importdata (the last line) fails to find the file.
prf_name= 'neutral';
prf_ext = '.prf';
prf_string(1,1) = strcat(prf_name, prf_ext);
unformatteddata = importdata(prf_string(1,1), DELIMITER, HEADERLINES);
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Alex
Alex 2017-7-25
I resolved the error by using:
unformatteddata = importdata(prf_string{1}, DELIMITER, HEADERLINES);

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回答（1 个）

Prasanth Sunkara
Prasanth Sunkara 2017-7-25
Hi Alex,
The issue is not with the "importdata" function.
The below command which you used to concatenate the two char arrays should throw a Dimension mismatch error.
>> prf_string(1,1) = strcat(prf_name, prf_ext);
I do not see the need to use array indexing here.
Just use,
>> prf_string = strcat(prf_name, prf_ext);
I believe that would solve your issue.
PS: Refer this link on how to work with character arrays & strings.
  1 个评论
Alex
Alex 2017-7-25
This caused the same error, "??? Error using ==> importdata at 136 Unable to open file." I resolved the error by using:
unformatteddata = importdata(prf_string{1}, DELIMITER, HEADERLINES);

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