how to read CSV file in matlab while ignoring the first line
조회 수: 91 (최근 30일)
이전 댓글 표시
hi i have this csv file with one header that i dont need and two columns of numbser that i need: https://www.dropbox.com/s/oq2zgmosna347e5/004cm.csv?dl=0 i tried textscan but for some reason it wont work correctly
fid=fopen('004cm.csv');
dat=textscan(fid,'%f%f%f%f%f','Headerlines',1 );
fclose(fid);
what is wrong?
댓글 수: 1
Star Strider
2014년 9월 24일
Attach your file here instead. Use the ‘paperclip’ or ‘staple’ icon. (Your file doesn’t exist at the URL you supplied.)
답변 (2개)
dpb
2014년 9월 24일
What is wrong is you didn't specify the delimiter...
dat=textscan(fid,'%f%f%f%f%f','Headerlines',1,'delimiter',',');
For a simple file such as this, while TMW has relegated it to red-haired stepchild status, I still prefer textread as it returns an array directly instead of a cell array when it isn't (necessarily) needed and handles the filename inherently saving the bother of the fopen/fclose pair...
dat=reshape(textread('matt.csv','%f','delimiter',',','headerlines',1),5,[]).'
I used a single format string and reshape as the one peculiarity for textread for the purpose of returning a single array is that it expects as many output variables as there are conversion fields in the format string.
댓글 수: 0
Image Analyst
2014년 9월 24일
You might want to look at importdata(). You can specify delimiter and number of headerlines to skip.
댓글 수: 1
Image Analyst
2014년 9월 24일
I think it's like textscan() except it does the opening and closing for you.
참고 항목
카테고리
Help Center 및 File Exchange에서 Data Import and Export에 대해 자세히 알아보기
제품
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!