help me using dlmread

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Masood rauf khan
Masood rauf khan 2016-1-4
编辑： Walter Roberson 2016-1-5
Error using dlmread (line 138)
Mismatch between file and format string.
Trouble reading 'Numeric' field from file (row number 1, field number 4) ==> ,055 -118,055 -117,055 -116,055
-115,055 -114,055 -113,055 -112,055 -111,055 -110,055 -109,055 -108,055 -107,055 -106,055
-105,055 -104,055 -103,055 -102,055 -101,055 -100,055 -99,055 -98,055 -97,055 ..
and also
Error in (line 52)
VeriImmaMis=dlmread(strcat(PathName,FileName),'\t',Range);
How can i fix this problem.

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回答（1 个）

dpb
dpb 2016-1-4
编辑：dpb 2016-1-4
The problem is the ',' in the fields; is it intended to be a decimal point or a thousands separator? Either way, you've got to handle it explicitly.
>> s='-115,055 -114,055'; % sample subline of type in file...
>> cell2mat(textscan(s,'%f,%f','collectoutput',1)) % read fields; return in array
ans =
-115 55
-114 55
>> ans(:,1)+ans(:,2)/1000
ans =
-114.9450
-113.9450
>>
If it's thousands separator, then
>> sign(ans(:,1)).*(abs(ans(:,1))*1000+ans(:,2))
ans =
-115055
-114055
>>
PS: Of course, you'll want to save the result of the textscan call on the file in a variable and use that when doing the conversion--this was just demo at command line to illustrate...
fid=fopen('yourfile');
v=cell2mat(textscan(fid,'%f,%f','collectoutput',1));
fid=fclose(fid);
%appropriate operation here on v by columns...

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