How can I read a matrix contain '?'

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MED
MED 2013-12-7
评论： MED 2013-12-7
I want to read file txt and replace '?' in the current matrix with 0 exempl
File containing this matrix :
A;B;C
?;7;9
9;?;1
1;8;5
==>
A;B;C
0;7;9
9;0;1
1;8;5

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采纳的回答

Walter Roberson
Walter Roberson 2013-12-7
fid = fopen('filename.txt')
d = textscan(fid,'%f%f%f', 'Delimiter', ';', 'TreatAsEmpty', '?', 'EmptyValue', 0, 'CollectOutput', 1)
fclose(fid)
out = d{1};

更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-12-7
fid=fopen('filename.txt')
d=textscan(fid,'%s')
fclose(fid)
out=strrep(d{1},'?','0')
  3 个评论
显示 1更早的评论
Azzi Abdelmalek
Azzi Abdelmalek 2013-12-7
Data are imported like shown in your question
MED
MED 2013-12-7
yes but this is not a matrix this is set of strings i can't manipulate it

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