ash2 {ash}

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.

See Also

bin2

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)