.-
help for ^poisml^                                           (STB-45: sg91)
.-

Robust variance estimator for maximum-likelihood Poisson regression
-------------------------------------------------------------------

Command line:

  ^poisml^ depvar [varlist] [weight] [^if^ exp] [^in^ range]  
  [, ^lt^olerance^(^#^)^ ^ir^r ^of^fset^(^var^)^ ^nolo^g ^r^obust ^sc^ore^(^var^)^ ^cl^uster^(^var^)^]
  

Options
-------

^level(^#^)^ specifies the confidence level, in percent, for confidence inter-
    vals of the coefficients; see help @level@.

^irr^ specifies that parameter estimates are to be displayed in exponential
    form; standard errors and CIs adjusted.

^offset()^ specifies the offset variable - log raw var prior to using as offset.

^nolog^ suppress display of the iteration log.

^cluster()^ identifies variable used for clustering.

^robust^ displays robust variance estimator; implied when ^cluster()^
    is specified.

^score()^ creates a variable with score value.

^ltolerance(^#^)^ is the tolerance for convergence; it should never need to
    be specified.


Results may be redisplayed by entering the command.  ^irr^ and ^level(^#^)^
are allowed as options without reestimation.


Examples
--------

 . ^poisml studytim died drug2 drug3, irr nolog^
 
 . ^poisml infected cases cd4 cd8, nolog irr off(cases) cluster(prov)^

 . ^poisml, level(90)^    [redisplay]


Author
------

     Joseph Hilbe
     Arizona State University
     atjmh@@asuvm.inre.asu.edu 


Also see
--------

    STB:  sg91 (STB-45)
 Manual:  [R] poisson, glm
On-line:  help for @poisson@, @glm@