i think i really got it this time, nature of code in

java/examples/Books/Nature of Code/introduction/NoiseDistribution/NoiseDistribution.pde

@@ -0,0 +1,33 @@
+// Daniel Shiffman
+// The Nature of Code
+// Testing Distribution of Perlin Noise generated #'s vs. Randoms
+
+float[] vals;
+float[] norms;
+float xoff = 0.0f;
+
+void setup() {
+  size(300,200);
+  vals = new float[width];
+  norms = new float[width];
+}
+
+void draw() {
+  background(100);
+  float n = noise(xoff);
+  int index = int(n*width);
+  vals[index]++;
+  xoff += 0.01;
+ stroke(255);
+  boolean normalization = false;
+  float maxy = 0.0;
+  for (int x = 0; x < vals.length; x++) {
+    line(x,height,x,height-norms[x]);
+    if (vals[x] > height) normalization = true;
+    if(vals[x] > maxy) maxy = vals[x];
+  }
+  for (int x = 0; x < vals.length; x++) {
+    if (normalization) norms[x] = (vals[x] / maxy) * (height);
+    else norms[x] = vals[x];
+  }
+}