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thist - a go package for calculating online histograms with plotting to the terminal and images

Documentation Go Report Card Join the chat at https://gitter.im/bsiposkj/thist

Check out the watch subcommands from the csvtk and seqkit tools to see the code in action.

Example

package main

import (
        "fmt"
        "github.com/bsipos/thist"
        "math/rand"
        "time"
)

// randStream return a channel filled with endless normal random values
func randStream() chan float64 {
        c := make(chan float64)
        go func() {
                for {
                        c <- rand.NormFloat64()
                }
        }()
        return c
}

func main() {
        // create new histogram
        h := thist.NewHist(nil, "Example histogram", "auto", -1, true)
        c := randStream()

        i := 0
        for {
                // add data point to hsitogram
                h.Update(<-c)
                if i%50 == 0 {
                        // draw histogram
                        fmt.Println(h.Draw())
                        time.Sleep(time.Second)
                }
                i++
        }
}

demo video

TODO

  • Add more details on online histogram generation.
  • Add separate object for online estimation of moments.
  • Maybe add tcell as a back-end?

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A go package for generating online histograms and plotting them in the terminal and PDFs

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