Golang : Simple histogram example
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:
By Adam Ng
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