[R] About poisson distribution fitting and testing

[Peter Ehlers]

Does fitdistr() in package MASS help?

  Peter Ehlers

Linda Lei wrote:

> Hi All,
> 
>  
> 
> I have a sequence of positive integers, which is right skewed. The mean
> value is 6 and variance is 11. 
> 
> I suspect it can be fitted by poisson distribution. But I'm not familiar
> with the function to fit distribution. 
> 
> Could you please help me with it? Also, once I fit the poisson 
> 
> distribution, how can I check the good-ness of this fitting?
> 
>  
> 
> Thank you!
> 
> 
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> 
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