ash: ash2 – R documentation

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ash

ash2

bivariate ASH

Description

Compute bivariate ASH estimate (product polynomial kernel)

Usage

ash2(bins, m, kopt)

Arguments

`bins`	(input list) bin count matrix nc and interval matrix ab from `bin2`
`m`	(input integer vector of length 2) x and y direction smoothing parameters. Default is 5 by 5.
`kopt`	see `ash1`

Value

Matrix of ASH estimates returned. Components x,y,z can be given to the contour function directly. Other input variables returned in list for record keeping.

Examples

# Continuing example from help(bin2)
m <- c(5,5)
f <- ash2(bins,m)
image(f$x,f$y,f$z)
contour(f$x,f$y,f$z,add=TRUE)

ash

David Scott's ASH Routines

v1.0-15

GPL (>= 2)

Authors

S original by David W. Scott R port by Albrecht Gebhardt <albrecht.gebhardt@aau.at> adopted to recent S-PLUS by Stephen Kaluzny <spk@insightful.com>

Initial release

2015-08-27