You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
114 lines
3.1 KiB
Plaintext
114 lines
3.1 KiB
Plaintext
10 months ago
|
*! version 2.2 09march2007
|
||
|
|
*! Jean-Benoit Hardouin
|
||
|
|
************************************************************************************************************
|
||
|
|
* Gammasym : Symmetric gamma function
|
||
|
|
*
|
||
|
|
* Historic:
|
||
|
|
* Version 1 (2004-01-29): Jean-Benoit Hardouin
|
||
|
|
* Version 2 (2004-02-01): Jean-Benoit Hardouin
|
||
|
|
* Version 2.1 (2005-04-04) : Jean-benoit Hardouin
|
||
|
|
* Version 2.2 (2007-03-09) : Jean-benoit Hardouin /*Weights*/
|
||
|
|
*
|
||
|
|
* Jean-benoit Hardouin, University of Nantes - France
|
||
|
|
* jean-benoit.hardouin@univ-nantes.fr
|
||
|
|
*
|
||
|
|
* News about this program : http://www.anaqol.org
|
||
|
|
* FreeIRT Project : http://www.freeirt.org
|
||
|
|
*
|
||
|
|
* Copyright 2004-2007 Jean-Benoit Hardouin
|
||
|
|
*
|
||
|
|
* This program 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
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program 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 the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
*
|
||
|
|
************************************************************************************************************
|
||
|
|
|
||
|
|
|
||
|
|
program define gammasym,rclass
|
||
|
|
version 7
|
||
|
|
syntax anything [, Weight(string) DISplay]
|
||
|
|
|
||
|
|
local B `weight'
|
||
|
|
|
||
|
|
if "`B'"!="" {
|
||
|
|
numlist "`B'"
|
||
|
|
local B=r(numlist)
|
||
|
|
local nbw:word count `B'
|
||
|
|
local score=0
|
||
|
|
forvalues i=1/`nbw' {
|
||
|
|
local B`i':word `i' of `B'
|
||
|
|
local score=`score'+`B`i''
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
local nbgroups:word count `anything'
|
||
|
|
if "`B'"=="" {
|
||
|
|
forvalues i=1/`nbgroups' {
|
||
|
|
local B`i'=1
|
||
|
|
}
|
||
|
|
local nbw=`nbgroups'
|
||
|
|
local score=`nbgroups'
|
||
|
|
}
|
||
|
|
if `nbgroups'!=`nbw' {
|
||
|
|
di in red "There is not the same number of values and of weights. Please correct that."
|
||
|
|
error
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
tokenize `anything'
|
||
|
|
local list
|
||
|
|
forvalues i=1/`nbgroups' {
|
||
|
|
local tmp=``i''
|
||
|
|
local list "`list' `tmp'"
|
||
|
|
}
|
||
|
|
|
||
|
|
tokenize `list'
|
||
|
|
|
||
|
|
tempname G
|
||
|
|
matrix `G'=J(`=`score'+4',`nbgroups',0)
|
||
|
|
|
||
|
|
local poids=`score'+2
|
||
|
|
local epsilon=`score'+3
|
||
|
|
local max=`score'+4
|
||
|
|
|
||
|
|
forvalues j=1/`nbgroups' {
|
||
|
|
matrix `G'[`poids',`j']=`B`j''
|
||
|
|
matrix `G'[`epsilon',`j']=exp(-``j'')^`B`j''
|
||
|
|
if `j'!=1 {
|
||
|
|
matrix `G'[`max',`j']=`G'[`max',`=`j'-1']+`B`j''
|
||
|
|
}
|
||
|
|
matrix `G'[1,`j']=1
|
||
|
|
}
|
||
|
|
matrix `G'[`=`B1'+1',1]=exp(-`1')^`B1'
|
||
|
|
|
||
|
|
forvalues j=2/`nbgroups' {
|
||
|
|
local w=`B`j''
|
||
|
|
forvalues s=2/`=`score'+1' {
|
||
|
|
matrix `G'[`s',`j']=`G'[`s',`j']+`G'[`s',`=`j'-1']
|
||
|
|
}
|
||
|
|
forvalues s=`=`w'+1'/`=`score'+1' {
|
||
|
|
matrix `G'[`s',`j']=`G'[`s',`j']+exp(-``j'')^`w'*`G'[`=`s'-`w'',`=`j'-1']
|
||
|
|
}
|
||
|
|
}
|
||
|
|
forvalues r=0/`score' {
|
||
|
|
if "`display'"!="" {
|
||
|
|
display in green "Level: " in ye `r' in green _col(25) " Gamma=" in ye %10.5f `G'[`=`r'+1',`nbgroups']
|
||
|
|
}
|
||
|
|
return scalar gamma`r'= `G'[`=`r'+1',`nbgroups']
|
||
|
|
}
|
||
|
|
*return matrix G=`G'
|
||
|
|
end
|
||
|
|
|
||
|
|
|