Why does MATLAB crash when plotting?
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Hi, I am learning Matlab and am running a simple script. In particular, I don't why but for a few days when plotting, Matlab 2021a is unreasonably slow and crash on my PC (Itel core i7 CPU 2.50 Ghz RAM 8 GB).
I am trying a simple plot:
plotData(X, y);
>> sz = size(X)
sz =
118 2
>> sz = size (y)
sz =
118 1
Any ideas?
Thanks
7 个评论
Walter Roberson
2021-3-21
What message do you see when it crashes?
What is plotData() ? Is it from https://www.mathworks.com/matlabcentral/fileexchange/58273-one-vs-all-classification-using-logistic-regression-for-iris-dataset ?
Michele Mingione
2021-3-21
编辑：Michele Mingione
2021-3-21
From here, a data set of a course in machine learning from coursera. I attached it. No messagge because when I try plotting matlab remains in state "busy" and if i don't stop with ctrl+c all crash not only matlab but all PC. However, if I stop the run plotting, Matlab creates many similar figure. Only for a few days, I have this problem and i don't why
Christopher McCausland
2021-3-21
Hi Michele,
Which example in the example folder is it?
From the sounds of it the plot function has been included in a very large for loop. MATLAB states that it is "busy" because it is still trying to draw many, many graphs, after a period of time it runs out of RAM and crashes the PC.
Drawing graphs in any program is computationally intensive. Try to stop the plotting and instead collate the data into one final (singular) plot. This should be less intensive to plot.
Hope this helps,
Christopher
Walter Roberson
2021-3-21
"To help you get more familiar with plotting, we have left plotData.m empty so you can try to implement it yourself. "
Please show how you implemented plotData.m
Image Analyst
2021-3-21
Please attach all the m-files and data files we need to run your code and reproduce the problem.
Rafael Hernandez-Walls
2021-3-21
The variable X has two columns, which column do you want to plot against Y?
Rafael Hernandez-Walls
2021-3-21
vs Y?
回答（2 个）
Arthi Sathyamurthi
2021-3-24
0 个投票
My initial analysis indicates this crash was the result of a known issue. You can refer to the following question for resolution steps.
Michele Mingione
2021-4-3
0 个投票
It seems to work, now.
There was a mistake with my code plotData(X, y) when saving it. Matlab tried to draw many, many graphs and after a period of time it runs out of RAM and crashes the PC. I fixed it. My fault, sorry
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2021-3-21
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