// This macro demonstrates how to draw a log-log plot. // http://en.wikipedia.org/wiki/Log-log_plot requires("1.47r"); n = 1000; x = newArray(n); y = newArray(n); y2 = newArray(n); y3 = newArray(n); for (i=0; i<n; i++) { v = 0.1+i*0.1; x[i] = v; y[i] = v; y2[i] = v*v; y3[i] = v*v*v; } Plot.create("Log-log Plot","X Axis","Y Axis"); Plot.setLogScaleX(); Plot.setLogScaleY(); Plot.setLimits(0.1, n/10, 0.1, n/10); Plot.setFrameSize(500, 500); Plot.setLineWidth(2); Plot.setColor("blue"); Plot.add("line", x, y); Plot.setColor("green"); Plot.add("line", x, y2); Plot.setColor("red"); Plot.add("line", x, y3); setJustification("right"); x = 0.2; y = 0.07; Plot.setColor("black"); Plot.addText("y = x^3", x, y); Plot.addText("y = x^2", x, y+0.04); Plot.addText("y = x", x, y+0.08); x += 0.01; y -= 0.01; Plot.setColor("red"); Plot.drawNormalizedLine(x, y, x+0.1, y); Plot.setColor("green"); Plot.drawNormalizedLine(x, y+0.04, x+0.1, y+0.04); Plot.setColor("blue"); Plot.drawNormalizedLine(x, y+0.08, x+0.1, y+0.08); Plot.show();