MATLAB: Do plotting commands delete axes UserData

axesMATLABuserdata

If I store data in the UserData property of an open axes object and then plot something on the axes, the UserData is deleted. Does this happen for a good reason, and is there any way to prevent it?
Here is sample code to illustrate this:
>> myAx = axes;
>> myAx.UserData = 1:10;
>> myAx.UserData
ans =
     1     2     3     4     5     6     7     8     9    10
>> plot(rand(5))
>> myAx.UserData
ans =
     []
I'd like to have UserData persist after adding more graphics objects to the axes.

Best Answer

This was a silly question - I just need to call 
>> hold on
before plotting. I knew that about graphics objects, but hadn't realized that all the axes properties are replaced by new plot commands.
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