Function to smooth out values from analog sensors

Smooth_analog_values.ino

int sampleData(int analogPin, int samples = 8, int sampleInterval = 50) {  
  int sampleData[samples];
  int val = 0;
  for (int i = 0; i<samples; i++) {
    sampleData[i] = analogRead(analogPin);
    val = val + sampleData[i];
    delay(sampleInterval);
  }
  val = (val / samples);
  return map(val, 550, 1023, 100, 0);
}