Info

此问题已关闭。 请重新打开它进行编辑或回答。

saving data to the file

1 次查看（过去 30 天）
Artur Lipnicki
Artur Lipnicki 2016-10-10
关闭： MATLAB Answer Bot 2021-8-20
How to use function fprintf in Matlab2016b? Why thoe following comands are uncorrect?
fid = fopen('file.txt','a');
fprintf(fid,'%.6f %.6f %.6f\n',xw,yw,rw);
fclose(fid);
  4 个评论
显示 2更早的评论
Artur Lipnicki
Artur Lipnicki 2016-10-10
Error using fprintf Invalid file identifier. Use fopen to generate a valid file identifier.
José-Luis
José-Luis 2016-10-10
What's the value of fid?
Do you have write access to the current folder?

此问题已关闭。

回答（2 个）

Pritesh Shah
Pritesh Shah 2016-10-10
Did you defined the variable xw,yw,rw?
Guillaume
Guillaume 2016-10-10
Matlab failed to open the file. There may be many reasons for this, the file does not exist / the file is not is in the current directory (since you didn't specify a path) / you don't have read access to the file / something else.
Open the file with
[fid, errmsg] = fopen('file.txt', 'a');
assert(fid > 0, 'Failed to open file because: %s', errmsg);
And see what error you get.

此问题已关闭。

标签

Community Treasure Hunt

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

Start Hunting!

Translated by