how to read text file and to ignore the first 10 rows and to take only the 4rth and 5th columns?
1 次查看(过去 30 天)
显示 更早的评论
how to read text file and to ignore the first 10 rows and to take only the 4rth and 5th columns? from this file: http://iopscience.iop.org/0266-5611/17/6/301/media/dielTM_dec4f.exp
i tried to use textscan but i don't really understand how to and it looks a bit complicated
any other solution or how to do this?
0 个评论
采纳的回答
per isakson
2014-9-15
编辑:per isakson
2014-9-15
Try
cac = textscan( fid, '%*f%*f%*f%f%f%*f%*f', 'Headerlines', 10 );
Doc says:   %*   Skip the field. textscan does not create an output cell for any field that it skips.
That's not too complicated!
 
"any other solution or how to do this?"   None less complicated than textscan - AFAIK
1 个评论
Image Analyst
2014-9-15
dlmread() would be easier if it only had a headerlines option. With textscan() you also have to call fopen() and fclose().
更多回答(1 个)
Image Analyst
2014-9-15
Maybe try importdata()
delimiterIn = ' ';
headerlinesIn = 10;
myStructure = importdata(filename,delimiterIn,headerlinesIn);
data = myStructure.data;
Worked for me.
2 个评论
Image Analyst
2014-9-15
You could do it all in just 2 lines instead of the 3 required for textscan(). Plus you don't need to figure out all that stuff about '%*f%*f%*f%f%f%*f%*f' since it figures it out for you.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Text Files 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!