go-chart/matrix/regression_test.go

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package matrix
import (
"testing"
2018-04-05 09:36:12 +02:00
assert "github.co/blend/go-sdk/assert"
)
func TestPoly(t *testing.T) {
assert := assert.New(t)
var xGiven = []float64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
var yGiven = []float64{1, 6, 17, 34, 57, 86, 121, 162, 209, 262, 321}
var degree = 2
c, err := Poly(xGiven, yGiven, degree)
assert.Nil(err)
assert.Len(c, 3)
assert.InDelta(c[0], 0.999999999, DefaultEpsilon)
assert.InDelta(c[1], 2, DefaultEpsilon)
assert.InDelta(c[2], 3, DefaultEpsilon)
}