extract dataset from textfile to many variables

1 次查看（过去 30 天）
Win co
Win co 2013-6-9
Hi everyone, I have a textfile with N rows of data (N is very big, 45e6 for example). I would like to divide these N rows into k subsets of 1e6 rows (I suppose k is integer to simplify the problem), then save each subset to one file .mat. Could somebody show me how to code please ? Best regards, Winn

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2013-6-9
If you are using OS-X or Linux, I suggest you use the Unix-level command "split"
On MS Windows, if efficiency is important, I suggest you use perl (which is included with all MATLAB releases.) The perl code can be seen at http://www.perlmonks.org/?node_id=90768
To do it in MATLAB, I would probably suggest doing the reading using textscan() with a format of '%s' and 'Delimiter', ''
  3 个评论
显示 1更早的评论
Win co
Win co 2013-6-10
It's so great your help. That's exactly what I'm looking for. Thank you very much

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Text Files 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by