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Scatter plot undefined variable

Asked by Jackie Yang on 14 Aug 2019
Latest activity Commented on by Jackie Yang on 15 Aug 2019
Hi, i just started using Matlab for a personal project, I don't have any experience with it.
I'v tried to plot scatter plots with 3 different appropriate data sets and they all get the same error:
HALLLLAO 2019-08-14 at 8.44.59 pm.png
This is the same for every data set that I use...
Can i please get some help trying to fix this? Here's line 56HALLLLAO 2019-08-14 at 8.46.22 pm.png
Thank you!

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2 Answers

Answer by Geoff Hayes
on 14 Aug 2019
 Accepted Answer

Jackie - is the MATLAB code that you have posted above from the built-in MATLAB scatter function? Or is it something hat you have written? In the command window type
which scatter -all
to see which implementations of this function exist. If more than one exists, then you may want to rename your function to not conflict with the built-in one.
As for the error, at line 55 the boolean allowNonNumeric is defined but allowNumeric is being passed into the getRealData function. If this is your code, then try modifying it to keep the variables consistent.

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Steven Lord
on 14 Aug 2019
Line 56 in the scatter.m included in MATLAB uses the variable allowNonNumeric. If you don't have a different copy as Geoff suspected, did you modify scatter.m? If you did, change it back so line 56 uses allowNonNumeric.
Hi.
I believe the problem is the built-in scatter function.I never modified anything.
I know for a fact that the problem is insided the built-in coded since I have done numerous trials with fresh data sets and they all get the same error message,so it wouldn't be my mistake...
It sounds like I have to change the built-in function it self, should I directly change it in the scatter.m or somewhere else?
Thankyou!
I'v changed the allowNonNumeric to allowNumeric in scatter.m, it seems to work, thank you!
Just wondering does all MATLAB copies comes with NonNumeric settings, I'm pretty sure i've never fiddledd with it.

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Answer by Andrey Kiselnikov on 14 Aug 2019
Edited by Andrey Kiselnikov on 14 Aug 2019

"allowNonNumeric" and "allowNumeric" are different variables, you defined first one and forgot last one (I assume this is mistake).
Good reference with ready to try examples is here
If my help was useful please mark this answer as accepted.

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Hi, I tiredd the example codeds, they all seem to work... But my data set doesn't. I was thinking maybe it's to do with the size of the data? I have 2 columns with about 4000 cells each..
Thank you!

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