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JavaScript Natural taxonomy algorithm implements code _javascript techniques

Source: Internet
Author: User
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<!doctype html>
<meta charset= "Utf-8" >
<meta http-equiv= "x-ua-compatible" content= "ie=7, Ie=9, ie=10" >
<meta name= "Viewport"
Content= "initial-scale=1, Maximum-scale=1,user-scalable=no" >
<title> Natural Taxonomy Algorithm </title>
<script>
function Getjenksbreaks (data,numclass) {
function Sortnumber (A,B)//In JavaScript, array's Sort method must use this function, otherwise it is not sorted by number size
{
Return A-b
}
int numclass;
var numdata = data.length;
Data.sort (Sortnumber); Sort first

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, ten, 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, 9, 6,, 9, 9, 7, 9, 6, 6, 6, 9,
3, 2, 5, 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, 4, 4, 9, 5, 5, 3, 5, 3,
161, 136, 166, 113, 159, 114, 135, 1, 174,
191, 60, 176,, 155, 62, 142, 185, 84, 140, 27, 111, 176, 189,
143, 155, 35, 10, 136, 158, 26, 29, 136, 97, 121, 172, 139, 173, 138, K, K., , 193, 194,
, 147, 139, 176, 130, MB, 109, 78, 75, 32, 88, 131, 168, 89, 25, 160, and 5, 129, 159, 128, 190, 129, 6, 176, and 196,
, and, of the same, in the same, at the same.

/* 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>

<body >
<button type= "button" onclick= "doit ()" > Natural Taxonomy </button>

<input id= "Text" ></input>
</body>

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