gistfile1.java

public void execute(){
    	do {

    		this.theta1 -= alpha * deriveTheta1();
    		this.theta0 -= alpha * deriveTheta0();

    		//used for plotting
    		tplot[iters] = iters;
    		theta0plot[iters] = theta0;
    		theta1plot[iters] = theta1;
    		iters++;

    		if (iters % dispiter == 0){
    			addTrendLine(plot, true);

    		}

    		if (iters > maxiter) break;
    	} while (Math.abs(theta1) > tol || Math.abs(theta0) > tol);
    	plot.addScatterPlot("X-Y", initial_data.x, initial_data.y);
    	System.out.println("theta0 = " + this.theta0 + " and theta1 = " + this.theta1);
    }