public void samplesToString(DoubleArrayList theta) { int cols = theta.size(); sampleString = ""; for (int param = 0; param < (cols - 1); ++param) { sampleString = sampleString + Double.toString(theta.getQuick(param)) + ", "; // thetaSamples.set(sampleLoc, param, thetaEstNow.get(param)); } sampleString = sampleString + Double.toString(theta.getQuick(cols - 1)); // System.out.println(); }