// ==========================================================================
// $Id: slices.go,v 1.1 2014/03/27 03:27:49 jlang Exp $
// CSI2120 GO: Slices
// ==========================================================================
// (C)opyright:
//
//   Jochen Lang
//   EECS, University of Ottawa
//   800 King Edward Ave.
//   Ottawa, On., K1N 6N5
//   Canada. 
//   http://www.eecs.uottawa.ca
// 
// Creator: Jochen Lang (based on example by R. Laganiere)
// Email:   jlang@eecs.uottawa.ca
// ==========================================================================
// $Log: slices.go,v $
// Revision 1.1  2014/03/27 03:27:49  jlang
// Created Go examples for intro lecture.
//
// ==========================================================================
package main

import "fmt"

func mean(tab []int) (meanVal float64){
	// for index, value := range collection
	for _, value := range tab {
		meanVal+= (float64)(value)
	}
	meanVal /= (float64)(len(tab))
	return
}

func main() {
	var table = [5]int{3, 4, 8, 9, 2}
	m := mean(table[:]) // all elements
	fmt.Printf("result= %f\n", m)
	m = mean(table[2:]) // elements 2 to the end
	fmt.Printf("result= %f\n", m)
	m = mean(table[1:3]) // 2 elements from 1 up to 3
	fmt.Printf("result= %f\n", m)
}