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advanced2.html
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<!DOCTYPE html>
<html>
<head>
<title>genetic programming with Javascript</title>
<style type="text/css">
button {
font-size: large;
border-radius:5px 5px 5px 5px ;
}
#generationField {
color: red;
padding: 10px;
}
#bestCodeField {
overflow-x:visible;
overflow-y:inherit;
}
div.sheet {
display: none;
}
.tab {
padding-top: 10px;
height: 700px;
}
.sheet-switch {
display: none;
}
.sheet-label {
font-size: large;
padding: 0px 3px 3px 3px;
border-radius:5px 5px 0px 0px ;
margin-right: 5px;
border-top: 1px solid lightgray;
border-left: 1px solid lightgray;
border-right: 1px solid lightgray;
}
.sheet-container {
float: left;
}
[type=radio]:checked ~ .sheet {
transition: Background 1s, height 1s;
position: absolute;
left: 10px;
height: 300px;
display: block;
}
/**
* Fast View
* Works for Firefox (only?)
*/
[type=radio]:hover ~ .sheet {
transition: Background 1s, height 1s;
position: absolute;
left: 10px;
height: 700px;
display: block;
background: linear-gradient(lightgray, #FFF);
z-index:15;
}
[type=radio]:checked ~ .sheet-label {
background: none repeat scroll 0 0 lightgray;
}
</style>
<script type="text/javascript" language="javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
</head>
<body>
<h2>The Blind Codemaker</h2>
is searching for a function for your "Input Data".<br>
<h2>Good luck! And stay patient!</h2>
<hr>
<button onclick="main()" id="startField">Start / Restart</button>
<button id="stopField" onclick="stop()">Stop</button>
<div id="generationField"></div>
<hr>
<div class="tab" >
<div class="sheet-container">
<input id="id-0" type="radio" class="sheet-switch" name="tabGroupA"/>
<label class="sheet-label" for="id-0" >Input Data</label>
<div class="sheet" >
<textarea id="inputField" cols="80" rows="35" wrap="soft">
1 2
2 5
3 10
4 17
7 50
11 122</textarea>
</div>
</div>
<div class="sheet-container">
<input id="id-2" type="radio" class="sheet-switch" name="tabGroupA" />
<label class="sheet-label" for="id-2" >Code Blocks</label>
<div class="sheet" >
<textarea id="codeBlocksField" wrap="off" cols="80" rows="35">
; ; ; ; ; ;
a++; b++; c++; d++; e++; f++; g++; h++;
a--; b--; c--; d--; e--; f--; g--; h--;
a=a; b=a; c=a; d=a; e=a; f=a; g=a; h=a;
a=a; a=b; a=c; a=d; a=e; a=f; a=g; a=h;
a+=a; a+=b; a+=c; a+=d; a+=e; a+=f; a+=g; a+=h;
a-=a; a-=b; a-=c; a-=d; a-=e; a-=f; a-=g; a-=h;
a*=a; a*=b; a*=c; a*=d; a*=e; a*=f; a*=g; a*=h;
a/=a; a/=b; a/=c; a/=d; a/=e; a/=f; a/=g; a/=h;
a%=a; a%=b; a%=c; a%=d; a%=e; a%=f; a%=g; a%=h;
a=Math.abs(a); a=Math.abs(b); a=Math.abs(c); a=Math.abs(d); a=Math.abs(e); a=Math.abs(f); a=Math.abs(g); a=Math.abs(h);
a=Math.acos(a); a=Math.acos(b); a=Math.acos(c); a=Math.acos(d); a=Math.acos(e); a=Math.acos(f); a=Math.acos(g); a=Math.acos(h);
a=Math.asin(a); a=Math.asin(b); a=Math.asin(c); a=Math.asin(d); a=Math.asin(e); a=Math.asin(f); a=Math.asin(g); a=Math.asin(h);
a=Math.atan(a); a=Math.atan(b); a=Math.atan(c); a=Math.atan(d); a=Math.atan(e); a=Math.atan(f); a=Math.atan(g); a=Math.atan(h);
a=Math.ceil(a); a=Math.ceil(b); a=Math.ceil(c); a=Math.ceil(d); a=Math.ceil(e); a=Math.ceil(f); a=Math.ceil(g); a=Math.ceil(h);
a=Math.cos(a); a=Math.cos(b); a=Math.cos(c); a=Math.cos(d); a=Math.cos(e); a=Math.cos(f); a=Math.cos(g); a=Math.cos(h);
a=Math.exp(a); a=Math.exp(b); a=Math.exp(c); a=Math.exp(d); a=Math.exp(e); a=Math.exp(f); a=Math.exp(g); a=Math.exp(h);
a=Math.floor(a); a=Math.floor(b); a=Math.floor(c); a=Math.floor(d); a=Math.floor(e); a=Math.floor(f); a=Math.floor(g); a=Math.floor(h);
a=Math.log(a); a=Math.log(b); a=Math.log(c); a=Math.log(d); a=Math.log(e); a=Math.log(f); a=Math.log(g); a=Math.log(h);
a=Math.max(a,a); a=Math.max(a,b); a=Math.max(a,c); a=Math.max(a,d); a=Math.max(a,e); a=Math.max(a,f); a=Math.max(a,g); a=Math.max(a,h);
a=Math.min(a,a); a=Math.min(a,b); a=Math.min(a,c); a=Math.min(a,d); a=Math.min(a,e); a=Math.min(a,f); a=Math.min(a,g); a=Math.min(a,h);
a=Math.pow(a,a); a=Math.pow(a,b); a=Math.pow(a,c); a=Math.pow(a,d); a=Math.pow(a,e); a=Math.pow(a,f); a=Math.pow(a,g); a=Math.pow(a,h);
a=Math.random(); a=Math.random(); a=Math.random(); a=Math.random(); a=Math.random(); a=Math.random(); a=Math.random(); a=Math.random();
a=Math.round(a); a=Math.round(b); a=Math.round(c); a=Math.round(d); a=Math.round(e); a=Math.round(f); a=Math.round(g); a=Math.round(h);
a=Math.sin(a); a=Math.sin(b); a=Math.sin(c); a=Math.sin(d); a=Math.sin(e); a=Math.sin(f); a=Math.sin(g); a=Math.sin(h);
a=Math.sqrt(a); a=Math.sqrt(b); a=Math.sqrt(c); a=Math.sqrt(d); a=Math.sqrt(e); a=Math.sqrt(f); a=Math.sqrt(g); a=Math.sqrt(h);
a=Math.tan(a); a=Math.tan(b); a=Math.tan(c); a=Math.tan(d); a=Math.tan(e); a=Math.tan(f); a=Math.tan(g); a=Math.tan(h);
</textarea>
</div>
</div>
<div class="sheet-container">
<input id="id-1" type="radio" class="sheet-switch" name="tabGroupA" checked="checked"/>
<label class="sheet-label" for="id-1" >Genetic Result</label>
<div class="sheet" >
<div id="bestCodeField"></div>
</div>
</div>
</div>
<script>
var generationField = $('#generationField');
var bestCodeField = $('#bestCodeField');
var mutationRate=0.7;
var crossoverRate=0.2;
var codeSize=50;
var populationSize=100;
var generation=0;
var individual=0;;
var best;
var timeStamp;
var run=true;
var foo = new Array();
var codeBlocks = new Array();
var population = new Array();
var ga;
function rand(v) {
return Math.floor(v*Math.random());
}
function initCode() {
var code = {};
code.list=new Array();
for (var i=0; i<codeSize; i++) {
code.list[i]=codeBlocks[rand(codeBlocks.length)];
}
return code;
}
function calcFitness(code) {
var fitness=0;
code.foo = "code.ga = function(x) { var a=0, b=0, c=0, d=0, e=0, f=0, g=0, h=0, i=0, j=0, k=0, l=0, m=0, n=0, o=0, p=0;b=x;"
+code.list.join('')
+"return a\n}";
eval(code.foo);
var s=1;
for(var i=0; i< foo.length; i+=s) {
var f=foo[i];
var y0=f.y;
var y1=code.ga(f.x);
if (isNaN(y1)) {
f.fitness=1e100;
} else {
f.fitness=(y1-y0)*(y1-y0);
}
if (fitness<=best) {
fitness+=f.fitness;
} else {
s=3;
fitness+=s*f.fitness;
}
}
if (fitness<0.000001) {
fitness+=code.foo.length/(100+code.list.length*15);
} else {
fitness+=1;
}
code.fitness=fitness;
}
function mutate(target) {
var a=rand(target.list.length);
target.list[a]=codeBlocks[rand(codeBlocks.length)];
}
function crossover(idx, parent1) {
var target=population[idx];
var parent2=population[rand(idx)]
var a=rand(target.list.length);
for( var i=0, j=0; i<target.list.length; i++) {
if (a+i<target.list.length) {
target.list[i]=parent1.list[a+i];
} else {
target.list[i]=parent2.list[j++];
}
}
}
function parsimonyToString(val) {
return (val>1?val-1:0)+" + "+(val>1?1:val);
}
function showInfo() {
if (best>population[0].fitness) {
best=population[0].fitness;
calcFitness(population[0]);
foo.sort(function(a,b){return a.seq-b.seq});
var result="<pre>individual = "+population[0].id
+"\nfitness = "+parsimonyToString(population[0].fitness)+"\n"
+population[0].foo.replace(/;/g,";\n ")+";\n\nresult = [\n";
for(var i=0; i<foo.length; i++) {
var y0=foo[i].y;
var y1=population[0].ga(foo[i].x);
if (isNaN(y1)) {
foo[i].fitness=1e100;
} else {
foo[i].fitness=(y1-y0)*(y1-y0);
}
result+=" "+foo[i].x+", "+y1+(y1==foo[i].y?", // == // ":", // != // ")+foo[i].y+"\n"
}
result+="];</pre><hr>";
bestCodeField.prepend(result);
foo.sort(function(a,b){return b.fitness-a.fitness});
}
var t1=new Date().getTime();
generationField.text("generations = "+generation);
generationField.append("<br>individuals = "+individual);
generationField.append("<br>individuals/sec = "+1000*generation*population.length/(t1-timeStamp));
generationField.append("<br>bestFitness = "+parsimonyToString(best));
generationField.append("<br>currentFitness = "+parsimonyToString(population[0].fitness));
}
function loopThruGenerations() {
for(var chunk=0; chunk<10; chunk++) {
// make the next generation.
for(var i=population.length-1; i>=0; i--) {
var changed=0;
var target=population[i];
var parent1=population[rand(i)];
for( var j=0; j<parent1.list.length; j++) {
target.list[j]=parent1.list[j];
}
if (Math.random()<crossoverRate) {
crossover(i, parent1);
changed=1;
}
if (Math.random()<mutationRate) {
mutate(target);
changed=1;
}
if (changed) {
calcFitness(target);
target.id=individual++;
} else {
target.fitness=parent1.fitness;
}
}
population.sort(function(a,b){return a.fitness-b.fitness});
var save=best;
best=9e300;
calcFitness(population[0]);
best=save;
foo.sort(function(a,b){return b.fitness-a.fitness});
generation++;
if (best>population[0].fitness) {
showInfo();
}
}
showInfo();
if (population[0].fitness>0.152 && run) setTimeout( loopThruGenerations, 20);
}
function stop() {
run=false;
}
function main() {
run=true;
codeBlocks = $('#codeBlocksField').val().split(/;\s*/g);
for(var i=0; i< codeBlocks.length; i++) {
if (codeBlocks[i].length>0) codeBlocks[i]+=";";
}
var data = $('#inputField').val().split("\n");
foo = new Array();
for(var i=0; i< data.length; i++) {
var line=data[i].split(/[\s;,]+/g);
var obj=new Object();
obj.seq=i;
obj.fitness=0;
obj.x=line[0]-0;
obj.y=line[line.length-1]-0;
foo[i]=obj;
}
bestCodeField.append("start<br>");
generation=0;
individual=0;
best=9e300;
timeStamp=new Date().getTime();
for( var i=0; i<populationSize; i++) {
population[i] = initCode();
population[i].id=individual++;
}
loopThruGenerations();
}
main();
</script>
</body>
</html>