p98t - 経済統計練習帳

var point = new Array();
var x = new Array();
var year = new Array();
var month = new Array();
var y = new Array();
 
function sample() {
 
        var query = "SELECT * FROM " +
            '18IL5WQVy4dQVHl3l6Qr-o_RVVEs-lkoD_Lw-GlxQ';
        var encodedQuery = encodeURIComponent(query);
 
        var url = ['https://www.googleapis.com/fusiontables/v1/query'];
        url.push('?sql=' + encodedQuery);
        url.push('&key=AIzaSyAH0WCAXRIdHdbI-6bnMSN4kVDDZZmGyqY');
        url.push('&callback=?');
 
 
 
 
 
        $.ajax({
            url: url.join(''),
            dataType: 'jsonp',
            success: function (data) {
                var rows = data['rows'];
 
 
 
                sx = 0;
 
                for (var i in rows) {
                    sx = sx + 1;
                    x[sx] = rows[i][0] / 1;
                    y[sx] = rows[i][1] / 1;
 
 
                }
 
 
                number = sx;
 
                x1 = 0;
                for (s = 1; s < number + 1; s++) {
                    x1 = x1 + x[s];
                }
                x1 = x1 / number;
 
                y1 = 0;
                for (s = 1; s < number + 1; s++) {
                    y1 = y1 + y[s];
                }
                y1 = y1 / number;
 
                y2 = 0;
                for (s = 1; s < number + 1; s++) {
                    y2 = y2 + (y[s] - y1) * (y[s] - y1);
                }
 
 
                x2 = 0;
                for (s = 1; s < number + 1; s++) {
                    x2 = x2 + (x[s] - x1) * (x[s] - x1);
                }
 
 
                xy = 0;
                for (s = 1; s < number + 1; s++) {
                    xy = xy + (x[s] - x1) * (y[s] - y1);
                }
 
 
                xy = xy / (Math.sqrt(x2) * Math.sqrt(y2));
 
                $("#memo").html(xy);
 
 
 
 
            }
        });
 
}