Undefined variable "matlab"

2018 12 7
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更新时间：2021 2 8
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Hi,
I recently installed MATLAB 2018b onto a new Windows 10 machine. Running an old .m file, I now see an error when calling the "errorbar" function:
"
Undefined variable "matlab" or class "matlab.graphics.chart.internal.checkpvpairs".
Error in errorbar>parseargs (line 255)
msg = matlab.graphics.chart.internal.checkpvpairs(pvpairs,linestyleerror);
Error in errorbar (line 61)
[pvpairs,args,nargs,msg,orientation] = parseargs(args);
"
I can't find a similar error occuring elsewhere online. Has anyone seen this error before?
Thanks,
David

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David
David 2018-12-7
To update on this problem, entering the command "restoredefaultpath" temporarily fixed the problem. Closing and reopening Matlab, the error returns.
Is there a problem with the directory of the default path?
Walter Roberson
Walter Roberson 2018-12-7
savepath after restoredefaultpath
David
David 2018-12-7
That seems to have fixed the problem. Thanks Walter!
I'm having the same problem, but restoring matlab path doesn't fix it.
@Walter Robersonshould I make a seperate issue?

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 采纳的回答

Walter Roberson
Walter Roberson 2018-12-7

3 个投票

In cases where restoredefaultpath provides relief, then afterwards
savepath
or else go into pathtool and click on save

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