.TH "eoOneFifthMutation" 3 "19 Oct 2006" "Version 0.9.4-cvs" "EO" \" -*- nroff -*-
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.SH NAME
eoOneFifthMutation \- the dynamic version: just say it is updatable - and write the \fBupdate()\fP method! here the 1 fifth rule: count the proportion of successful mutations, and increase sigma if more than threshold (1/5 !)  

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.SH SYNOPSIS
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\fC#include <eoNormalMutation.h>\fP
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Inherits \fBeoNormalMutation< EOT >< EOT >\fP, and \fBeoUpdatable\fP.
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.SS "Public Types"

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.RI "typedef EOT::Fitness \fBFitness\fP"
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.SS "Public Member Functions"

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.RI "\fBeoOneFifthMutation\fP (\fBeoEvalFunc\fP< \fBEOT\fP > &_eval, double &_sigmaInit, unsigned _windowSize=10, double _updateFactor=0.83, double _threshold=0.2)"
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.RI "\fI(Default) Constructor. \fP"
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.RI "virtual std::string \fBclassName\fP () const "
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.RI "\fIThe class name. \fP"
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.RI "bool \fBoperator()\fP (\fBEOT\fP &_eo)"
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.RI "\fIDo it! calls the standard mutation, then checks for success and updates stats. \fP"
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.RI "void \fBupdate\fP ()"
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.RI "\fIthe method that will be called every generation if the object is added to the checkpoint \fP"
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.SS "Private Attributes"

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.RI "\fBeoEvalFunc\fP< \fBEOT\fP > & \fBeval\fP"
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.RI "double \fBthreshold\fP"
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.RI "double \fBupdateFactor\fP"
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.RI "std::vector< unsigned > \fBnbMut\fP"
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.RI "std::vector< unsigned > \fBnbSuccess\fP"
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.RI "unsigned \fBgenIndex\fP"
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.SH "Detailed Description"
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.SS "template<class EOT> class eoOneFifthMutation< EOT >"
the dynamic version: just say it is updatable - and write the \fBupdate()\fP method! here the 1 fifth rule: count the proportion of successful mutations, and increase sigma if more than threshold (1/5 !) 
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Definition at line 177 of file eoNormalMutation.h.
.SH "Constructor & Destructor Documentation"
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.SS "template<class EOT> \fBeoOneFifthMutation\fP< \fBEOT\fP >::\fBeoOneFifthMutation\fP (\fBeoEvalFunc\fP< \fBEOT\fP > & _eval, double & _sigmaInit, unsigned _windowSize = \fC10\fP, double _updateFactor = \fC0.83\fP, double _threshold = \fC0.2\fP)\fC [inline]\fP"
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(Default) Constructor. 
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\fBParameters:\fP
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\fIeval\fP the evaluation function, needed to recompute the fitmess 
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\fI_sigmaInit\fP the initial value for uniform mutation 
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\fI_windowSize\fP the size of the window for statistics 
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\fI_threshold\fP the threshold (the 1/5 - 0.2) 
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\fI_updateFactor\fP multiplicative update factor for sigma 
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Definition at line 195 of file eoNormalMutation.h.
.SH "Member Function Documentation"
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.SS "template<class EOT> bool \fBeoOneFifthMutation\fP< \fBEOT\fP >::operator() (\fBEOT\fP & _eo)\fC [inline, virtual]\fP"
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Do it! calls the standard mutation, then checks for success and updates stats. 
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\fBParameters:\fP
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\fI_eo\fP The chromosome undergoing the mutation 
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Reimplemented from \fBeoNormalMutation< EOT >\fP.
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Definition at line 216 of file eoNormalMutation.h.
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References EO< F >::fitness(), EO< F >::invalid(), EO< F >::invalidate(), and eoNormalMutation< EOT >::operator()().

.SH "Author"
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Generated automatically by Doxygen for EO from the source code.