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QQ plot equivalent for discrete variable? 
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#1
Dec312, 01:40 PM

P: 122

Hello,
You can use a QQ plot to visually test if 2 continuous variables are from the same distribution and you get a straight line. Is there a way to visually test if 2 discrete variables are from the same distribution? Also is there a way to test it mathematically? Thanks 


#2
Dec412, 02:12 AM

P: 439

You can do a QQ plot for discrete data, but it's a bit more tricky, i'll try to find a source for you.



#3
Dec412, 04:06 AM

P: 122

Thanks



#4
Dec412, 11:31 AM

P: 122

QQ plot equivalent for discrete variable?
Hi there,
Apart from using a QQ plot is there any other way to test if two variables have the same distribution? Thanks 


#5
Dec412, 01:38 PM

Sci Advisor
P: 3,626

A chisquare test?



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