Golang : Simple histogram example



Tags : golang histogram slice iteration

This is a simple histogram program written in Golang. Can be useful in situations where you want to roughly assess the probability distribution of a given variable by depicting the frequencies of observations occurring in certain ranges of values.

Here you go!

 package main

 import (
 "fmt"
 )

 const SIZE = 10

 var n = [SIZE]int{20, 7, 11, 13, 1, 3, 30, 4, 9, 2}

 func main() {
 fmt.Printf("%sss\n", "Element", "Value", "Histogram")

 for i := 0; i <= SIZE-1; i++ {
 fmt.Printf("%7dd ", i, n[i])

 for j := 1; j <= n[i]; j++ {
 //fmt.Printf("%c", '*')
 fmt.Printf("%c", '∎')
 }
 fmt.Println()
 }
 }

Output:

Element Value Histogram

  0 20 ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
  
 1 7 ∎∎∎∎∎∎∎
  
 2 11 ∎∎∎∎∎∎∎∎∎∎∎
  
 3 13 ∎∎∎∎∎∎∎∎∎∎∎∎∎
  
 4 1 ∎
  
 5 3 ∎∎∎
  
 6 30 ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
  
 7 4 ∎∎∎∎
  
 8 9 ∎∎∎∎∎∎∎∎∎
  
 9 2 ∎∎
  

Reference:

https://en.wikipedia.org/wiki/Histogram



Tags : golang histogram slice iteration

By Adam Ng

IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.


Advertisement