LogConcDEAD (version 1.3-2)

interplcd: Evaluate the log-concave maximum likelihood estimator of 2-d data on a grid for plotting

Description

Uses the akima package to evaluate the logarithm of the log-concave maximum likelihood estimator on a grid for 2-d data, for use in plot.LogConcDEAD.

Usage

interplcd(lcd, gridlen=100, span=0.5, ...)
lcd.interp(lcd, gridlen=100, span=0.5, ...)

Arguments

lcd

Object of class "LogConcDEAD" (typically output from mlelcd)

gridlen

A scalar indicating the size of the grid

span

Scalar parameter needed by interp (see interp for more details)

...

Other arguments to be passed to interp

Value

• x
  Vector of $x$-values of the grid
• y
  Vector of $y$-values of the grid
• z
  A matrix of the values of the log of the maximum likelihood estimator at points on the grid

Details

Uses the akima package's interp function to evaluate the log-concave maximum likelihood estimator on a grid covering the span of the data. The output is of a form readily usab;e by plot.LogConcDEAD, image, contour, etc, as illustrated in the examples below.

For examples, please see mlelcd. lcd.interp is deprecated, but retained for compatibility with previous versions.

See Also

interp , mlelcd