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Topic: Plot InverseSurvivalFunction
Replies: 1   Last Post: Nov 15, 2013 6:35 PM

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emammendes@gmail.com

Posts: 143
Registered: 8/22/05
Plot InverseSurvivalFunction
Posted: Nov 15, 2013 6:55 AM
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Hello

Is there any way to evaluate (or even plot) the inverse survival function of a sum of two Fs?

Here is what I have so far

\[ScriptCapitalD]=TransformedDistribution[u+v,{u\[Distributed]FRatioDistribution[2,2 2],v\[Distributed]FRatioDistribution[2,2 2]}]

PDF[\[ScriptCapitalD],x]

Plot[PDF[\[ScriptCapitalD],x],{x,0,10},Filling->Axis]

CDF[\[ScriptCapitalD],x]

Plot[CDF[\[ScriptCapitalD],x],{x,0,10},Filling->Axis]

All above commands return the results I expect but when I try

Plot[InverseSurvivalFunction[\[ScriptCapitalD],x],{x,0,1},Filling->Axis,PlotRange-> Full]

Mathematica won't show any curve. Does it mean that Mathematica could not find an expression for it?

I know that the sum of Fs will get rather complicated.

Is there any way to get an output from InverseSurvivalFunction[\[ScriptCapitalD],0.95] for instance?

Many thanks

Ed





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