27 lines
556 B
Go
27 lines
556 B
Go
package main
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import (
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"math"
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"math/rand"
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"testing"
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)
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func TestStats(t *testing.T) {
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N := 16
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ss := make([]*stats, N)
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rng := rand.New(rand.NewSource(1))
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for i := 0; i < N; i++ {
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ss[i] = &stats{}
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maxJ := rng.Intn(1000)
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for j := 0; j < maxJ; j++ {
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ss[i].AddPoint(rng.NormFloat64()*5 + 500)
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}
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t.Logf("mean: %f, stddev: %f, count %f", ss[i].mean, math.Sqrt(ss[i].variance()), ss[i].count)
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}
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out := &stats{}
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for i := 0; i < N; i++ {
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out.Combine(ss[i])
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t.Logf("combine: mean: %f, stddev: %f", out.mean, math.Sqrt(out.variance()))
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}
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}
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