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Agnes
‎09-01-2015
  • 7 Posts
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Re: MLE using SAS Genmode

by SAS Employee in Mathematical Optimization, Discrete-Event Simulation, and OR
‎10-25-2012 08:33 AM
‎10-25-2012 08:33 AM
Hi Agnes, Sorry, but I don't think we can help you here in this forum, it is about SAS/OR and it sounds like you don't have that available either. Your best bet is probably to repost your question in the SAS Statistical Procedures forum. Philipp ... View more

Re: SAS/IML module that computes the log-likelihood function of the ne...

by SAS Super FREQ in SAS/IML Software and Matrix Computations
‎10-18-2012 10:33 AM
‎10-18-2012 10:33 AM
Wikipedia has the equations for the log-likelihood: Negative binomial distribution - Wikipedia, the free encyclopedia You can call the DIGAMMA function in SAS: http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000245889.htm The use the basic outline provided in my article Maximum likelihood estimation in SAS/IML - The DO Loop ... View more

Re: Dispersion Parameter of Neg Binomial Dist in Genmode procedure

by Calcite | Level 5 in Statistical Procedures
‎10-22-2012 11:37 AM
‎10-22-2012 11:37 AM
The thing is that I want to fit the parameters to a single data set. I found a way to do this  using SAS IML but I only have SAS Base 9.1 and SAS Stat ... View more
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