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package main
import (
"bufio"
"flag"
"fmt"
"os"
"strconv"
"strings"
)
var (
stats = flag.Bool("S", false, "Display statistics about the sequence.")
)
func main() {
flag.Parse()
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "usage: [-S] <INPUT>")
flag.PrintDefaults()
}
elements := argsToElements(flag.Args())
if len(elements) < 1 {
scanner := bufio.NewScanner(os.Stdin)
var e []string
for scanner.Scan() {
e = append(e, strings.Split(scanner.Text(), " ")...)
}
elements = argsToElements(e)
}
seq := newSequence(elements)
fmt.Println(string(seq.histogram()))
if *stats {
fmt.Printf("min: %f\n", seq.min)
fmt.Printf("max: %f\n", seq.max)
fmt.Printf("avg: %f\n", seq.avg())
fmt.Printf("p50: %f\n", seq.p50())
fmt.Printf("p90: %f\n", seq.p90())
fmt.Printf("p99: %f\n", seq.p99())
fmt.Printf("p999: %f\n", seq.p999())
fmt.Printf("ordered sequence: %v\n", seq.elementsSorted)
}
}
// converts the input to float64
func argsToElements(args []string) []float64 {
elements := make([]float64, len(args))
for i, input := range args {
num, err := strconv.ParseFloat(input, 64)
if err != nil {
panic(err)
}
elements[i] = num
}
return elements
}
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