Logistic distribution

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  I'm trying to create a variable with a logistic distribution and I read on another forum post (http://social.microsoft.com/Forums/en-US/daa215eb-3a08-44c1-b1d7-f7433193af4b/new-distributions-migrated-from-communityresearchmicrosoftcom?forum=infer.net) that this can be done through the Gamma distribution.

  From Tom's post: 'logistic = log(F(1,1)) = log(Gamma(1) with Gamma(1) rate)'

  So would I specify the Variable like so?:

  Variable<double> logistic_var = Variable.Log(Variable.GammaFromShapeAndRate(1, Variable.GammaFromShapeAndRate(1, 1)));

  If so, which components of that line refer to the location and scale parameters of the logistic distribution? Can Infer.net learn both of these parameters?

  Thanks very much for all the help,

  Mark

  Sunday, August 24, 2014 5:05 PM