core

Documentation

Overview

Package core is a the core of the downsampling library.

Index

• type Point
  • func LTD(data []Point, threshold int) []Point
  • func LTOB(data []Point, threshold int) []Point
  • func LTTB(data []Point, threshold int) []Point
  • func LTTB2(data []Point, threshold int) []Point
  • func LTTBForBuckets(buckets [][]Point) []Point

Types

type Point

type Point struct {
	X float64
	Y float64
}

Point is a point on a line

func LTD

func LTD(data []Point, threshold int) []Point

LTD - Largest triangle dynamic(LTD) data downsampling algorithm implementation

• Require: data . The original data
• Require: threshold . Number of data points to be returned

func LTOB

func LTOB(data []Point, threshold int) []Point

LTOB - Largest triangle one bucket(LTOB) data downsampling algorithm implementation

• Require: data . The original data
• Require: threshold . Number of data points to be returned

func LTTB

func LTTB(data []Point, threshold int) []Point

LTTB - Largest triangle three buckets (LTTB) data downsampling algorithm implementation

• Require: data . The original data
• Require: threshold . Number of data points to be returned

func LTTB2

func LTTB2(data []Point, threshold int) []Point

LTTB2 - split the data into buckets and then apply run LTTB on each bucket

func LTTBForBuckets

func LTTBForBuckets(buckets [][]Point) []Point

LTTBForBuckets - apply LTTB on each bucket