//
//    FILE: hist_test.pde
//  AUTHOR: Rob Tillaart
//    DATE: 2012-12-23
//
// PUPROSE: test histogram frequency
//

#include "histogram.h"

double b[] = { 0, 100, 200, 300, 325, 350, 375, 400, 500, 600, 700, 800, 900, 1000 };

Histogram hist(14, b);

unsigned long lastTime = 0;
const unsigned long threshold = 500;  // milliseconds, for updating display

void setup()
{
  Serial.begin(115200);
  Serial.print("\nHistogram version: ");
  Serial.println(HISTOGRAM_LIB_VERSION);
}

void loop()
{
  int x = analogRead(A0);
  hist.add(x);

  // update output 
  unsigned long now = millis();
  if (now - lastTime > threshold)
  {
    lastTime = now;
    Serial.print(hist.count());
    for (int i = 0; i < hist.size(); i++)
    {
      Serial.print("\t");
      // gives percentage per bucket
      // Serial.print(hist.bucket(i));   
      Serial.print(hist.frequency(i),2);  
    }
	// find quartiles
    Serial.print("\t");
    Serial.print(hist.VAL(0.25), 2);
    Serial.print("\t");
    Serial.print(hist.VAL(0.50), 2);
    Serial.print("\t");
    Serial.print(hist.VAL(0.75), 2);
    Serial.println();

    if (hist.count() > 250000UL) hist.clear();
  }
}