goTWED: Go bindings for the Time Warp Edit Distance algorithm

Go bindings for the C library of P. Marteau's TWED algorithm.

If you have any suggestions, either open an issue or a pull request with the changes. Keep in mind updating the test cases if necessary.

Have fun!

Requirements

You need the gcc binary in your PATH variable. On Windows, the easiest way is to install TDM-GCC.

Getting started

go get -u github.com/kylhuk/goTWED

I have added an example file to get you started as fast as possible. It is stored under example/example.go

package main

import (
	"fmt"
	"github.com/kylhuk/goTWED"
)

func main() {

	ta := []float64{0, 0, 1, 1, 2, 3, 5, 2, 0, 1, -0.1}
	tsa := []float64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
	tb := []float64{0, 1, 1, 1, 2, 3, 5, 2, 0, 1, -0.1}
	tsb := []float64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
	nu := float64(1.1)
	lambda := float64(2.2)
	degree := int32(1)

	dist := gotwed.TWED(ta, tsa, tb, tsb, nu, lambda, degree)

	if dist != -1 {
		fmt.Println("The calculated distance is: ", dist)
	}
}

Citidation

Marteau, P.; F. (2009). "Time Warp Edit Distance with Stiffness Adjustment for Time Series Matching". IEEE Transactions on Pattern Analysis and Machine Intelligence. 31 (2): 306–318.

License

Beware, this project has two different licenses. The license for the original C code of P. Marteau (MIT License) is included in the file twed.c_LICENSE. The Go part is licensed under the Apache License 2.0, see goTWED.go_LICENSE