Files
gonum/stat/distuv/lognormal_test.go
Brendan Tracey e5448cb39f stat/all: reduce random size and test tolerance to decrease testing t… (#181)
* stat/all: reduce random size and test tolerance to decrease testing time.

We were generating a lot of random numbers, which is slow. Decrease the size of those random numbers, and in some cases increase the tolerance to compensate. In a couple cases, pull out code from testFullDist to allow for more fine-grained testing. This decrases:
distmat from 4.5s to 0.5s
distmv from 24.8s to 9s
distuv from 65.2s to 13s
samplemv from 2.8s to 1.2s
sampleuv from 3.5s to 2.1s
2017-08-07 18:09:24 -06:00

45 lines
847 B
Go

// Copyright ©2015 The gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package distuv
import (
"sort"
"testing"
)
func TestLognormal(t *testing.T) {
for i, dist := range []LogNormal{
{
Mu: 0.1,
Sigma: 0.3,
},
{
Mu: 0.01,
Sigma: 0.01,
},
{
Mu: 2,
Sigma: 0.01,
},
} {
f := dist
tol := 1e-2
const n = 1e5
x := make([]float64, n)
generateSamples(x, f)
sort.Float64s(x)
checkMean(t, i, x, f, tol)
checkVarAndStd(t, i, x, f, tol)
checkEntropy(t, i, x, f, tol)
checkExKurtosis(t, i, x, f, 2e-1)
checkSkewness(t, i, x, f, 5e-2)
checkMedian(t, i, x, f, tol)
checkQuantileCDFSurvival(t, i, x, f, tol)
checkProbContinuous(t, i, x, f, 1e-10)
checkProbQuantContinuous(t, i, x, f, tol)
}
}