var mat1=new Array();
var mat2=new Array();
var st=new Array();
for (var j = 0; j <= numdata; j++){
mat1[j]=new Array();
mat2[j]=new Array();
st[j]=0;
for(var i=0;i<=numclass;i++){
mat1[j][i]=0;
mat2[j][i]=0;
}
}
for (var i = 1; i <= numclass; i++) {
mat1[1][i] = 1;
mat2[1][i] = 0;
for (var j = 2; j <= numdata; j++){
mat2[j][i]=Number.MAX_VALUE;
}
}
var v=0;
for (var l = 2; l <= numdata; l++) {
var s1=0;
var s2=0;
var w=0;
var i3=0;
for (var m = 1; m <= l; m++) {
i3 = l - m + 1;
var val=parseInt(data[i3-1]);
s2 += val * val;
s1 += val;
w++;
v = s2 - (s1 * s1) / w;
var i4 = i3 - 1;
if (i4 != 0) {
for (var j = 2; j <= numclass; j++) {
if (mat2[l][j] >= (v + mat2[i4][j - 1])) {
mat1[l][j] = i3;
mat2[l][j] = v + mat2[i4][j - 1];
if(l==200&&j==5) alert("l="+200+",j="+5+";mat2[200][5]="+mat1[l][j]+"i3="+i3);
}
}
}
}
mat1[l][1] = 1;
mat2[l][1] = v;
}
var k = numdata;
var kclass=new Array();
/* int[] kclass = new int[numclass]; */
kclass[numclass - 1] = parseInt(data[data.length-1]);
/* kclass[numclass - 1] = (Integer) data.get(data.size() - 1); */
for (var j = numclass; j >= 2; j--) {
var id = parseInt(mat1[k][j]) - 2;
kclass[j - 2] = parseInt( data[id]);
k = parseInt( mat1[k][j] - 1);
}
return kclass;
}
function doit(){
var data = new Array( 9, 9, 9, 9, 8, 1, 9, 7, 6, 7, 10, 7, 7, 8, 5, 7, 8, 2,
6, 6, 9, 10, 2, 2, 3, 9, 9, 1, 9, 1, 6, 7, 1, 9, 6, 5, 2, 8, 6,
6, 6, 4, 1, 4, 10, 9, 6, 9, 9, 7, 10, 9, 6, 6, 6, 9, 3, 2, 5,
10, 3, 9, 6, 1, 2, 1, 2, 7, 5, 2, 6, 6, 2, 7, 9, 9, 5, 4, 6, 4,
1, 1, 5, 1, 4, 4, 2, 6, 9, 7, 3, 10, 4, 4, 9, 5, 5, 3, 5, 3,
161, 136, 22, 113, 48, 114, 166, 33, 159, 182, 135, 22, 174,
191, 60, 176, 1, 155, 62, 142, 185, 84, 140, 27, 111, 176, 189,
24, 60, 29, 139, 20, 70, 172, 90, 120, 121, 173, 57, 138, 86,
180, 143, 155, 35, 10, 136, 158, 26, 29, 136, 97, 193, 194,
104, 147, 182, 44, 84, 139, 176, 16, 130, 168, 109, 182, 87,
78, 115, 75, 32, 88, 131, 168, 89, 25, 160, 60, 72, 92, 129,
159, 99, 5, 192, 6, 53, 15, 62, 176, 73, 129, 128, 34, 190, 95,
19, 19, 196, 30 );
/* var list = new Array();
for(int i = 0; i < data.length; i++){
list.add(data[i]);
} */
//Collections.sort(list);
var text=document.getElementById("text");
text.value="";
var grade = getJenksBreaks(data, 5);
for (var i = 0; i < grade.length; i++)
text.value=text.value+grade[i]+",";
}
</script>
</head>
<body >
<button type="button"onclick="doit()">自然分类法</button>
<input id="text"></input>
</body>
</html>
