time-to-botec/go/squiggle.go

package main

import "fmt"
import "math"
import rand "math/rand/v2"

var r = rand.New(rand.NewPCG(1, 2))

func sample_unit_uniform() float64 {
	return r.Float64()
}

func sample_unit_normal() float64 {
	return r.NormFloat64()
}

func sample_uniform(start float64, end float64) float64 {
	return sample_unit_uniform()*(end-start) + start
}

func sample_normal(mean float64, sigma float64) float64 {
	return mean + sample_unit_normal()*sigma
}

func sample_lognormal(logmean float64, logstd float64) float64 {
	return (math.Exp(sample_normal(logmean, logstd)))
}

func sample_normal_from_90_ci(low float64, high float64) float64 {
	var normal90 float64 = 1.6448536269514727
	var mean float64 = (high + low) / 2.0
	var std float64 = (high - low) / (2.0 * normal90)
	return sample_normal(mean, std)

}

func main() {
	fmt.Println("Hello world!")
	fmt.Printf("%v\n", r.Float64())
	fmt.Printf("%v\n", r.NormFloat64())
}