File:Inverse gamma pdf.png
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Probability density function for the Inverse-gamma distribution
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gnuplot source under GPL:
dinvgamma(x,a,b) = exp(a*log(b) - lgamma(a) - (a+1)*log(x) - b*1.0/x) pinvgamma(x,a,b) = 1 - igamma(a, b*1.0/x) set xtics 0,0.5 set ytics 0,0.5 set samples 1001 set terminal postscript enhanced color solid lw 2 "Times-Roman" 27 set output plot [0:3] \ dinvgamma(x,1,1) title "{/Symbol a} = 1, {/Symbol b} = 1", \ dinvgamma(x,2,1) title "{/Symbol a} = 2, {/Symbol b} = 1", \ dinvgamma(x,3,1) title "{/Symbol a} = 3, {/Symbol b} = 1", \ dinvgamma(x,3,.5) title "{/Symbol a} = 3, {/Symbol b} = 0.5"
This work is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version. This work is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See version 2 and version 3 of the GNU General Public License for more details.http://www.gnu.org/licenses/gpl.htmlGPLGNU General Public Licensetruetrue |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:21, 22 April 2005 | 1,299 × 966 (152 KB) | Cburnett (talk | contribs) | New parameters | |
20:56, 22 April 2005 | 1,300 × 965 (164 KB) | Cburnett (talk | contribs) | Corrected symbols: alpha instead of k and beta instead of theta {{GFDL}} | ||
05:40, 7 April 2005 | 1,300 × 964 (147 KB) | Cburnett (talk | contribs) | Probability density function for the Inverse-gamma distribution {{GFDL}} |
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