+<!DOCTYPE html>
<html>
<head>
<title>Linear Regression</title>
- <!--[if IE]>
- <script type="text/javascript" src="excanvas.js"></script>
- <![endif]-->
- <script type="text/javascript" src="../strftime/strftime-min.js"></script>
- <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
- <script type="text/javascript" src="../dygraph-canvas.js"></script>
- <script type="text/javascript" src="../dygraph.js"></script>
+ <!--
+ For production (minified) code, use:
+ <script type="text/javascript" src="dygraph-combined.js"></script>
+ -->
+ <script type="text/javascript" src="../dist/dygraph.js"></script>
+
<style type="text/css">
body { max-width: 640 px; }
</style>
{
labels: ['X', 'Y1', 'Y2'],
underlayCallback: drawLines,
- drawPoints: true
+ drawPoints: true,
+ strokeWidth: 0.0
}
);
var y = g.getValue(i, series);
if (y == null) continue;
+ if (y.length == 2) {
+ // using fractions
+ y = y[0] / y[1];
+ }
num++;
sum_x += x;
var b = (sum_y - a * sum_x) / num;
coeffs[series] = [b, a];
- if (console) {
+ if (typeof(console) != 'undefined') {
console.log("coeffs(" + series + "): [" + b + ", " + a + "]");
}
g.updateOptions({});
}
+ function toHex(rgb) {
+ return 'rgb(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ')';
+ }
+
function drawLines(ctx, area, layout) {
if (typeof(g) == 'undefined') return; // won't be set on the initial draw.
var p1 = g.toDomCoords(x1, y1);
var p2 = g.toDomCoords(x2, y2);
- var color = g.getColors()[i - 1];
+ var c = Dygraph.toRGB_(g.getColors()[i - 1]);
+ c.r = Math.floor(255 - 0.5 * (255 - c.r));
+ c.g = Math.floor(255 - 0.5 * (255 - c.g));
+ c.b = Math.floor(255 - 0.5 * (255 - c.b));
+ var color = toHex(c);
ctx.save();
ctx.strokeStyle = color;
ctx.lineWidth = 1.0;