twApply2DMesh: twApply2DMesh

In twMisc: Utility functions of tw

Description

Applying FUN over x-y grid that is adapted to the density of x,y values.

Usage

twApply2DMesh(x, y = NULL, FUN = "+", argsFUN = list(), 
    dims = 20, knotSpacing = c(midquantile = "midquantile", 
        quantile = "quantile", all = "all", equidistant = "equidistant"), 
    label = deparse(substitute(FUN)), ...)

Arguments

x	range of x and y ordinate see xy.coords.
y
FUN
argsFUN
dims	integer vector of length 1 or 2: number of points in each dimension
knotSpacing	method for calulating the knots midquantile cutQuantiles for midpoints of intervals holding about equal number of points, by excluding the edges the sample is represented better (default) quantile cutQuantiles for breaks of intervals holding about equal number of points, includes edges all take all the provided xyz coordinates (overwrites dims) equidistant cover the range of dimension i by dims equidistant points
label
...	further arguments passed to FUN

Details

Note that knotSpacing default is "midquantile", so x and y do not specify the real coordinates (only with knotSpacing=all), but dims coordinates are calculated based on the density Note that with "midquantile", the grid does not cover the full range but the grid spacing is representative of the marginal distributions

Value

list of class twApply2DMesh with itmes

• mesh:matrix with each row one coordinate and two columns corresponding to x and y

• fval: the two dimensional array of evaluated function values

• label: argument label describing fval

• rangeOrig: list with items x, and y with the range of the original sample

Author(s)

Thomas Wutzler

See Also

plot.twApply2DMesh

twPairs, twMisc

twMisc documentation built on May 2, 2019, 6:11 p.m.