Implementations
Some statistics packages include implementations of Poisson regression.
- MATLAB Statistics Toolbox: Poisson regression can be performed using the "glmfit" and "glmval" functions.
- Microsoft Excel: Excel is not capable of doing Poisson regression by default. One of the Excel Add-ins for Poisson regression is XPost
- R: The function for fitting a generalized linear model in R is glm, and can be used for Poisson Regression
- SAS: Poisson regression in SAS is done by using GENMOD
- SPSS: In SPSS, Poisson regression is done by using the GENLIN command
- Stata: Stata has a procedure for Poisson regression named "poisson", and for panel data "xtpoisson"
- mPlus: mPlus allows for Poisson regression using the command COUNT IS when specifying the data
Read more about this topic: Poisson Regression