undefined: stats.MedianAbsoluteDeviationPopulation

[yildirim]

Hi,

I am not able to use the MedianAbsoluteDeviationPopulation function,

If I use "go doc", I do not see all functions:
$ go doc stats

package stats // import "github.com/zizmos/ego/vendor/github.com/montanaflynn/stats"

func Correlation(data1, data2 Float64Data) (float64, error)
func Covariance(data1, data2 Float64Data) (float64, error)
func GeometricMean(input Float64Data) (float64, error)
func HarmonicMean(input Float64Data) (float64, error)
func InterQuartileRange(input Float64Data) (float64, error)
func Max(input Float64Data) (max float64, err error)
func Mean(input Float64Data) (float64, error)
func Median(input Float64Data) (median float64, err error)
func Midhinge(input Float64Data) (float64, error)
func Min(input Float64Data) (min float64, err error)
func Mode(input Float64Data) (mode []float64, err error)
func Percentile(input Float64Data, percent float64) (percentile float64, err error)
func PercentileNearestRank(input Float64Data, percent float64) (percentile float64, err error)
func PopulationVariance(input Float64Data) (pvar float64, err error)
func Round(input float64, places int) (rounded float64, err error)
func Sample(input Float64Data, takenum int, replacement bool) ([]float64, error)
func SampleVariance(input Float64Data) (svar float64, err error)
func StandardDeviation(input Float64Data) (sdev float64, err error)
func StandardDeviationPopulation(input Float64Data) (sdev float64, err error)
func StandardDeviationSample(input Float64Data) (sdev float64, err error)
func StdDevP(input Float64Data) (sdev float64, err error)
func StdDevS(input Float64Data) (sdev float64, err error)
func Sum(input Float64Data) (sum float64, err error)
func Trimean(input Float64Data) (float64, error)
func VarP(input Float64Data) (sdev float64, err error)
func VarS(input Float64Data) (sdev float64, err error)
func Variance(input Float64Data) (sdev float64, err error)
type Coordinate struct{ ... }
func ExpReg(s []Coordinate) (regressions []Coordinate, err error)
func LinReg(s []Coordinate) (regressions []Coordinate, err error)
func LogReg(s []Coordinate) (regressions []Coordinate, err error)
type Float64Data []float64
type Outliers struct{ ... }
func QuartileOutliers(input Float64Data) (Outliers, error)
type Quartiles struct{ ... }
func Quartile(input Float64Data) (Quartiles, error)
type Series []Coordinate
func ExponentialRegression(s Series) (regressions Series, err error)
func LinearRegression(s Series) (regressions Series, err error)
func LogarithmicRegression(s Series) (regressions Series, err error)

However, MedianAbsoluteDeviationPopulation function is a public function in the implementation.
$go version
go version go1.10.2 darwin/amd64

$dep status
....
....
github.com/montanaflynn/stats ^0.2.0 0.2.0 eeaced0 0.2.0 1
...
...

[montanaflynn]

@yildirim can you try go get -u github.com/montanaflynn/stats which should pull latest code.

Edit: It's likely

package stats // import "github.com/zizmos/ego/vendor/github.com/montanaflynn/stats"

will still be used since it's in the /vendor directory. You should update this with the latest code that includes MedianAbsoluteDeviationPopulation.

Alternatively, after

go get -u github.com/montanaflynn/stats

you can use it directly

import "github.com/montanaflynn/stats"

[yildirim]

I used dep management tool, and it created the vendor directory. Yes, it is used in there, but if you look at Gopkg.tml (dep management tool create), it shows:

[[constraint]]
name = "github.com/montanaflynn/stats"
version = "0.2.0"

Everything seems fine, I don't understand why this tool didn't generate stats dependency correctly.

[yildirim]

ls vendor/github.com/montanaflynn/stats/
CHANGELOG.md LICENSE README.md stats.go
CONTRIBUTING.md Makefile legacy.go types.go

ls ~/src/github.com/montanaflynn/stats/
CHANGELOG.md legacy_test.go percentile_test.go
LICENSE load.go quartile.go
Makefile load_test.go quartile_test.go
README.md max.go regression.go
correlation.go max_test.go regression_test.go
correlation_test.go mean.go round.go
data.go mean_test.go round_test.go
data_set_distances.go median.go sample.go
data_set_distances_test.go median_test.go sample_test.go
data_test.go min.go sum.go
deviation.go min_test.go sum_test.go
deviation_test.go mode.go util.go
errors.go mode_test.go util_test.go
errors_test.go outlier.go variance.go
examples outlier_test.go variance_test.go
legacy.go percentile.go

[montanaflynn]

The problem is version 0.2.0 did not have MedianAbsoluteDeviationPopulation.

Related to #37 and #8 (comment) I need to release a new version. I will do that soon. In the meantime replace ./vendor/github.com/montanaflynn/stats/ with ~/src/github.com/montanaflynn/stats/ to have the latest code.

[yildirim]

I guess that "dep init" and "dep ensure" messed it up. After that, I have to do
"dep ensure -update github.com/montanaflynn/stats". This fixed the problem.

[yildirim]

Thanks for help

[montanaflynn]

I added a new tag 0.3.0 with the latest.