mannwhitney

Apr 9, 2024

Changes in this version

+ var ErrMismatchedSamples = errors.New("samples have different lengths")

+ var ErrSampleSize = errors.New("sample is too small")

+ var ErrSamplesEqual = errors.New("all samples are equal")

+ var ErrZeroVariance = errors.New("sample has zero variance")

+ var MannWhitneyExactLimit = 50

+ var MannWhitneyTiesExactLimit = 25

+ var StdNormal = NormalDist

+ func InvCDF(dist DistCommon) func(y float64) (x float64)

+ func Rand(dist DistCommon) func(*rand.Rand) float64

+ type DiscreteDist interface

+ PMF func(x float64) float64

+ Step func() float64

+ type Dist interface

+ PDF func(x float64) float64

+ type DistCommon interface

+ Bounds func() (float64, float64)

+ CDF func(x float64) float64

+ type LocationHypothesis int

+ const LocationDiffers

+ const LocationGreater

+ const LocationLess

+ type MannWhitneyUTestResult struct

+ AltHypothesis LocationHypothesis

+ N1 int

+ N2 int

+ P float64

+ U float64

+ func MannWhitneyUTest(x1, x2 []float64, alt LocationHypothesis) (*MannWhitneyUTestResult, error)

+ type NormalDist struct

+ Mu float64

+ Sigma float64

+ func (n NormalDist) Bounds() (float64, float64)

+ func (n NormalDist) CDF(x float64) float64

+ func (n NormalDist) InvCDF(p float64) (x float64)

+ func (n NormalDist) PDF(x float64) float64

+ func (n NormalDist) Rand(r *rand.Rand) float64

+ type UDist struct

+ N1 int

+ N2 int

+ T []int

+ func (d UDist) Bounds() (float64, float64)

+ func (d UDist) CDF(U float64) float64

+ func (d UDist) PMF(U float64) float64

+ func (d UDist) Step() float64