rjack: Outlier detection using the Reverse Jackknife

In biogeo: Point Data Quality Assessment and Coordinate Conversion

Description

Implements the Reverse Jackknife procedure as described by Chapman (2005). Used in outliers.

Usage

rjack(d)

Arguments

d	values of an environmental variable extracted from points

Details

This function is based on the Reverse Jackknife method described by Chapman (2005)

Value

indices of values that are outliers

Note

The implementation was based on Chapman (2005) and not the more conservative implementation in DivaGIS

Author(s)

Mark Robertson

References

Chapman, A.D. (2005) Principles and Methods of Data Cleaning - Primary Species and Species- Occurrence Data, version 1.0. Report for the Global Biodiversity Information Facility, Copenhagen.

See Also

outliers, errorcheck

Examples

x<-c((rnorm(20,mean=20,sd=2)),40)
a<-rjack(x)

biogeo documentation built on May 1, 2019, 8:05 p.m.