Use of num2str to name xml-files in a loop

12 次查看（过去 30 天）
Martin
Martin 2012-5-15
Hello,
I'm using a code to write xml-files for some data. The code is:
fid = fopen('file.xml', 'w');
if fid == -1; error('Cannot open file for writing'); end
fprintf(fid, 'Hello ');
fprintf(fid, '%g, ', x(1:end-1));
fprintf(fid, '%g', x(end));
fprintf(fid, ' This is the data.');
fclose(fid);
Since I need to write more than one xml-file, I would like to do it with a loop. My problem is that I need to name each file, e.g. file1.xml, file2.xml and so on. I have tried to do this with a num2str command in a loop, but I can't get it to work. Is there anyone out there who can help me with this problem?
Hope to hear from someone.
//Martin.

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2012-5-15

更多回答（1 个）

Martin
Martin 2012-5-15
I have looked at that link and tried to implement it (I don't know much about data ex- and import). I then write;
for k=1:3
textFilename = ['file' num2str(k) '.xml']
fid = fopen(textFilename, 'rt');
fprintf(fid, 'Hello ');
fprintf(fid, '%g, ', x(1:end-1));
fprintf(fid, '%g', x(end));
fprintf(fid, ' This is the data.');
fclose(fid);
end
This doesn't work - there's an error using fprintf. It's crucial that I can write the text in the files. Anyone who has a way to do it?
//Martin.
  2 个评论
Walter Roberson
Walter Roberson 2012-5-15
You would probably have more success if you opened the file for writing rather than reading.
Martin
Martin 2012-5-15
Hehe, I guess you're right. As I said, I'm new to ex- and import - and apparently also an idiot ;)
Thank you for the help.

请先登录，再进行评论。

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