ambur.critical: Estimate critical points for a polyline shapefile
In ambur: Analyzing Moving Boundaries Using R

ambur.critical

R Documentation

Estimate critical points for a polyline shapefile

Description

Determines the critical points of a single polyline using a linear spline function.

Usage

ambur.critical(ncritpts = 50, sampledist = 5)

Arguments

`ncritpts`	Number of critical points for output
`sampledist`	Sampling distance along the polyline for spline function

Details

A linear spline function is used to approximate the shape of a single polyline in shapefile. The linear spline is constructed using the number of critical points assigned to 'ncritpts'.

Value

A shapefile containing critical points. The shapefile is named "criticalpts.shp" and is stored in a time-stamped folder in side a folder named "AMBUR_critical" where the original polyine shapefile is located.