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Adjust for over dispersion in Enterprise Miner HP GLM node (poisson model)

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Posts: 41

Adjust for over dispersion in Enterprise Miner HP GLM node (poisson model)

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Hi Eveyrone,

 

In SAS I can use the scale=pearson command to adjust for over dispersion in my model.  Does anybody know how I would do the equivalent in the HP GLM node of Enterprise Miner?

 

Here's the code in PC SAS that I'm trying to replicate somehow in Enterprise Miner:

 

Proc Genmod data=crab;

Model Sa=w / dist=poi link=log scale=pearson;

output out= data2 p=pred;

 

Thank you!

 

 

SAS Super FREQ
Posts: 306

Re: Adjust for over dispersion in Enterprise Miner HP GLM node (poisson model)

The SCALE= option isn't available in PROC HPGENSELECT which is used in the HP GLM node, but you could use the Negative Binomial distribution instead of the Poisson to help with overdispersion.

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