import java.io.IOException;

/** Histogram Test
 * @author Simon George
 * @version 1.0 31 Aug 2001
 */
public class HistogramTest {

    public static void main (String[] args) throws IOException{

	// Create an object of class Histogram
	// 20 bins covering a range on the x-axis from -3.0 to 3.0 
	Histogram myhist = new Histogram("my histogram", 20, -3.0, 3.0);

	// Fill the histogram with some numbers
	// this should give approx 50 in each bin with no under/over flows:
	for (int i=0; i<1000; i++){
	    double x = -3.0 + i * 6.0/1000.0;
	    myhist.fill( x ); 
	}

	// Dump the accumulated bin contents out to a file
	myhist.writeToFile("myhist.dat");

	// Print a summary of the histogram to the console
	myhist.show();

	// Get some info from the histogram and print it out
	System.out.println ("About this histogram:");
	System.out.println ("  entries   " + myhist.entries());
	System.out.println ("  underflow " + myhist.underflow());
	System.out.println ("  overflow  " + myhist.overflow());
	System.out.println ("  area      " + myhist.area());
	System.out.println ("  mean      " + myhist.mean());

    }
    
}