Re: mathematica fit data to inverse gamma distribution
- To: mathgroup at smc.vnet.net
- Subject: [mg117404] Re: [mg117354] mathematica fit data to inverse gamma distribution
- From: Alexei Boulbitch <alexei.boulbitch at iee.lu>
- Date: Thu, 17 Mar 2011 06:33:26 -0500 (EST)
Hi, Alex,
put "ProbabilityDensity" instead of "PDF". In other words, try this:
data1 = RandomVariate[InverseGammaDistribution[0.5, 3], 10^4];
Show[Histogram[data1, {0, 20, 1}, "ProbabilityDensity"],
Plot[PDF[TruncatedDistribution[{0, 20},
InverseGammaDistribution[0.5, 3]], x], {x, 0, 20},
PlotStyle -> Thick]]
Have fun, Alexei
Hi,
I am trying to obtain same figure that is provided in Mathematica's website related to fitting an inverse gamma to a dataset. Here is the code I enter:
data1 = RandomVariate[InverseGammaDistribution[0.5, 3], 10^4];
Show[
Histogram[data1, {0, 20, 1}, "PDF"],
Plot[PDF[
TruncatedDistribution[{0, 20}, InverseGammaDistribution[0.5, 3]],
x], {x, 0, 20}, PlotStyle -> Thick]]
and here is the error I receive:
Histogram::hspec: The height specification PDF is not one of the named height functions or a function that can be used to compute the heights for each bin.>>
Show::"gcomb" : StyleBox[Could not combine the graphics objects in .....
I would appreciate anyone's help.
Regards
Alex
--
Alexei Boulbitch, Dr. habil.
Senior Scientist
Material Development
IEE S.A.
ZAE Weiergewan
11, rue Edmond Reuter
L-5326 CONTERN
Luxembourg
Tel: +352 2454 2566
Fax: +352 2454 3566
Mobile: +49 (0) 151 52 40 66 44
e-mail: alexei.boulbitch at iee.lu
www.iee.lu
--
This e-mail may contain trade secrets or privileged, undisclosed or
otherwise confidential information. If you are not the intended
recipient and have received this e-mail in error, you are hereby
notified that any review, copying or distribution of it is strictly
prohibited. Please inform us immediately and destroy the original
transmittal from your system. Thank you for your co-operation.