Need help on matlab table

1 view (last 30 days)
Tanu Shree
Tanu Shree on 2 Oct 2020
Answered: per isakson on 3 Oct 2020
I have a text file with object name like 'ABC_01.REST.BKP.Blr.RR.nii' and classifier. I want to loop through each object name based on the classifier but dot in file name is creating a problem, Any idea how to handle this?
ABV_0016.REST.blr6.dtAROMA_MNI.nii Controlled
ABV_0017.REST.blr6.dtAROMA_MNI.nii Syndrome 1
ABV_0019.REST.blr6.dtAROMA_MNI.nii Syndrome 2
ABV_0022.REST.blr6.dtAROMA_MNI.nii Syndrome 2
ABV_0030.REST.blr6.dtAROMA_MNI.nii Controlled
  3 Comments
Tanu Shree
Tanu Shree on 2 Oct 2020
My input will be classifier name like in above mentioned case Let's say If I pass Controlled it should give me two file name ABV_0016.REST.blr6.dtAROMA_MNI.nii and ABV_0030.REST.blr6.dtAROMA_MNI.nii.
Rik
Rik on 2 Oct 2020
You misunderstood me. The text you posted is not valid Matlab syntax, so what is your exact data?

Sign in to comment.

Accepted Answer

per isakson
per isakson on 3 Oct 2020
Assumption: You have a text file that contains exactly the five lines of text formatted as code in your question.
Run the function cssm as in this example
>> object_names = cssm( 'd:\m\cssm\cssm.txt', 'Controlled' )
object_names =
2×1 cell array
{'ABV_0016.REST.blr6.dtAROMA_MNI.nii'}
{'ABV_0030.REST.blr6.dtAROMA_MNI.nii'}
>>
>> object_names = cssm( 'd:\m\cssm\cssm.txt', 'Syndrome 2' )
object_names =
2×1 cell array
{'ABV_0019.REST.blr6.dtAROMA_MNI.nii'}
{'ABV_0022.REST.blr6.dtAROMA_MNI.nii'}
>>
where
function object_names = cssm( ffs, classifier )
fid = fopen( ffs, 'rt' );
cac = textscan( fid, '%s%[^\n]', 'CollectOutput',true );
[~] = fclose( fid );
cac = strtrim( cac{1} );
is_selected = strcmp( cac(:,2), classifier );
object_names = cac( is_selected, 1 );
end
Comments:
  • It's possible to use a loop, but I see no reason to do that.
  • How does the dot in the file name create a problem?
  • The space in some classifier values requires a special solution. In the function, cssm, I read the first "word" (i.e. the object name) and then the rest of the row to the second column.
  • There are other solutions, e.g. using readtable()

More Answers (0)

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!