build_grid_identical: Build a regular grid

In alexgenin/rollply: Moving-Window Add-on for 'plyr'

Description

Create a regular grid with the same number of points on each dimension.

Usage

build_grid_identical(coords, npts, pad = 0, ...)

Arguments

coords	A matrix or data frame of coordinates as columns
npts	The approximate total number of points of the output grid
pad	Padding on each dimension (a positive number makes a grid that is larger than the ranges of the coordinates).
...	other arguments are silently ignored

Details

This function creates a grid that covers a set of points. The number of points of the output grid is the same on all dimensions. This is probably the only useful option for 1D moving-window computations.

Value

The coordinates of a grid of points as a data frame with approximately npts rows and ncol(coords) columns. Names are transfered from the coords data frame.

See Also

Other grid building functions: build_grid_ahull_crop, build_grid_ahull_fill, build_grid_squaretile

alexgenin/rollply documentation built on May 10, 2019, 8:51 a.m.