Can't open example openExampl​e('stats/T​rainARegre​ssionEnsem​bleExample​')

2019 9 6
1 个回答
更新时间：2019 9 6
7 次查看（30 天）

0 个投票

Hi Matlab buddies,
I can't open example openExample('stats/TrainARegressionEnsembleExample') in my Matlab R2018B. Do you know what the problem could be? The version? I get the following wrong message:
Error using exampleUtils.getExamplesDir (line 13)
Unable to create a working directory at the location returned by the userpath function.
Error in exampleUtils.getWorkDir (line 2)
ed = exampleUtils.getExamplesDir();
Error in setupExample (line 11)
workDir = exampleUtils.getWorkDir(metadata);
Error in openExample (line 29)
workDir = setupExample(id, workDir);

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回答（1 个）

Fangjun Jiang
Fangjun Jiang 2019-9-6

0 个投票

You need to have the "Statistics and Machine Learning Toolbox".
Run "ver stats" to check

4 个评论
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Vlatko Milic
Vlatko Milic 2019-9-6
I think I have it- this message I get:
MATLAB Version: 9.5.0.944444 (R2018b)
MATLAB License Number: 663068
Operating System: Microsoft Windows 10 Education Version 10.0 (Build 18362)
Java Version: Java 1.8.0_152-b16 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
Statistics and Machine Learning Toolbox Version 11.4 (R2018b)
Fangjun Jiang
Fangjun Jiang 2019-9-6
Make sure you run the command in a folder that you have write access and can create a subfolder. The command creates a folder \Examples at your current folder.
Vlatko Milic
Vlatko Milic 2019-9-6
I have access to the folder and can create a subfolder. I guess the command loads some data? Do I need to load statistic toolbox somehow?
Fangjun Jiang
Fangjun Jiang 2019-9-6
edit exampleUtils.getExamplesDir
Add a breakpoint at line 13, check the condition to figure out which caused the error.

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