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.
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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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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
4 个评论
jonas
2018-8-14
Don't forget to accept the answer so that future readers can see that the issue was resolved.
更多回答(1 个)
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
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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