Why nothing is being plotted and this code is being appeared constantly? (Attempt to execute SCRIPT cla as a function:)

1 次查看（过去 30 天）

Wolfgang McCormack 2020-12-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/673943-why-nothing-is-being-plotted-and-this-code-is-being-appeared-constantly-attempt-to-execute-script

回答： Wolfgang McCormack 2020-12-20

Hi everyone,

So, apparently my MATLAB no longer likes to plot stuff and I do not know why. I tried some earlier suggestions such as that Rehash thing butthey didn't work. It is noteworthy to mention that my MATLAB has been installed to drive F not C. Could you please help me?

Thanks in advance!

11 个评论
显示 9更早的评论隐藏 9更早的评论

John D'Errico 2020-12-2

编辑：John D'Errico 2020-12-2

在 MATLAB Online 中打开

The probem is, that cla.m file you have is in the way. For some reason, you either created the file or perhaps you edited the existing version of cla.m, and deleted what was in there.

You keep seeing this eeror message, because plot uses cla. So everytime you try to plot, it uses cla. And somehow cla got either overwritten, or corrupted, etc.

If the cla on your drive is an empty file, then somehow it got stepped on.

If you do this at the command line,

type cla

this is what I see:

>>  type cla
function ret_ax = cla(varargin)
%CLA Clear current axes.
%   CLA deletes all children of the current axes with visible handles and resets
%   the current axes ColorOrder and LineStyleOrder.
%
%   CLA RESET deletes all objects (including ones with hidden handles)
%   and also resets all axes properties, except Position and Units, to
%   their default values.
%
%   CLA(AX) or CLA(AX,'reset') clears the single axes with handle AX.
%
%   See also CLF, RESET, HOLD.
%   CLA(..., HSAVE) deletes all children except those specified in
%   HSAVE.
%   Copyright 1984-2020 The MathWorks, Inc.
...

So if that file is indeed empty, then it would perhaps be best and easiest if you just redownload a new copy of MATLAB. This takes a matter of minutes.

If you have a complicated set of directories to set on your search path, I like to use the export_search_path utility I have posted on the file exchange. This allows you to easily export a search path in one release, and then re-create a comparable search path on a new release.

https://www.mathworks.com/matlabcentral/fileexchange/50087-export_search_path

Benjamin Kraus 2020-12-2

Looks to me like your MATLAB installation is corrupted. You can try reinstalling MATLAB, or contact technical support for assistance. They can certainly send you a copy of cla.m, but I'd be concerned that if cla.m is corrupted, there may be other files in the MATLAB installation that are corrupted.

Wolfgang McCormack 2020-12-20