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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 20 | reyssat | 1 | !if $wims_read_parm!=slib_header |
| 2 | !goto proc |
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| 3 | !endif |
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| 4 | slib_title=Cumulative distribution function of Gamma law |
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| 5 | slib_parms=3\ |
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| 6 | ,[data]\ |
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| 7 | ,a\ |
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| 8 | ,b |
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| 9 | |||
| 10 | slib_author=Bernadette PERRIN-RIOU |
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| 11 | slib_out=values of cumulative distribution function of Gamma law on data |
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| 12 | slib_comment=data can be a list of reals in brackets; density is b*exp(-b*x)*(b*x)^(a-1)/gamma(a) for x>=0 |
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| 13 | slib_example=[0.2,0.4,7],4,5 |
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| 14 | !exit |
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| 15 | |||
| 16 | :proc |
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| 17 | slib_out= |
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| 18 | |||
| 19 | !distribute item $wims_read_parm into slib_data,slib_a, slib_b |
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| 20 | slib_data=!declosing $slib_data |
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| 21 | slib_n=!itemcnt $slib_data |
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| 22 | |||
| 23 | slib_out=!exec pari slib_u=gamma($slib_a); V=vector($slib_n,x,1-incgam($slib_a ,$slib_b*[$slib_data][x],slib_u)/slib_u);\ |
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| 24 | for(slib_r =1, $slib_n, if ( [$slib_data][slib_r] <= 0, V[slib_r]=0)); V |
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| 25 | |||
| 26 | slib_out=!trim $slib_out |
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| 27 |