how to read a txt file having alphanumeric data and special characters. ? My text file is like this. I tried textread but could not get a result. any suggestion.

7 次查看(过去 30 天)
1 6:s 6:s 0 0 0 0.11 0 *0.889
2 6:s 6:s 0 0.272 0 0.006 0 *0.722
3 6:s 6:s 0 0.036 0 0 0.001 *0.963
4 6:s 6:s 0 0 0 0 0 *1
5 6:s 6:s 0 0 0 0 0 *1
6 6:s 3:f + 0 0.238 *0.365 0.009 0.033 0.355
7 6:s 5:n + 0 0 0 0 *0.999 0.001
8 6:s 6:s 0 0 0 0 0 *1
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采纳的回答

Stephen23
Stephen23 2018-8-14
编辑:Stephen23 2018-8-14
Here is an efficient solution using textscan. The test file is attached (you did not provide us with a sample file).
opt = {'Delimiter',' +*:','MultipleDelimsAsOne',true,'CollectOutput',true};
fmt = ['%*d%*d%*s%*d%*s',repmat('%f',1,6)];
[fid,msg] = fopen('test.txt','rt');
assert(fid>=3,msg)
C = textscan(fid,fmt,opt{:});
fclose(fid);
Which imports that last six columns of numeric data:
>> C{1}
ans =
0.00000 0.00000 0.00000 0.11000 0.00000 0.88900
0.00000 0.27200 0.00000 0.00600 0.00000 0.72200
0.00000 0.03600 0.00000 0.00000 0.00100 0.96300
0.00000 0.00000 0.00000 0.00000 0.00000 1.00000
0.00000 0.00000 0.00000 0.00000 0.00000 1.00000
0.00000 0.23800 0.36500 0.00900 0.03300 0.35500
0.00000 0.00000 0.00000 0.00000 0.99900 0.00100
0.00000 0.00000 0.00000 0.00000 0.00000 1.00000
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更多回答(1 个)

jonas
jonas 2018-8-14
编辑:jonas 2018-8-14
str=fileread('notes.txt');
str=regexprep(str,'[:+*a-zA-Z]',' ')
opt = {'Delimiter',' ','MultipleDelimsAsOne',true,'CollectOutput',true};
out = textscan(str,'%f%f%f%f%f%f%f%f%f',opt{:})
  7 个评论
jonas
jonas 2018-8-14
No problem! I'll refrain from deleting this answer as it shows how to use regexprep to clean up a textfile but make sure to accept the other one :)

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