//@code
objref r, g, hist, vec
r = new Random()
r.normal(-1, .5)

vec = new Vector()
vec.indgen(-3, 2, .1)	// x-axis for plot
hist = new Vector(vec.size())
g = new Graph()
g.size(-3, 2, 0, 50)
hist.plot(g, vec)
for(i=0; i<500; i=i+1){
	x = r.repick()
	print i, x
	j = int((x+3)*10) // -3 to 2 -> 0 to 50
	if (j >= 0) {
		hist.x[j] = hist.x[j]+1
	}
	g.flush()
	doNotify()
}