from_var_to_var {fgeo.tool}R Documentation

Functions to get variables from other variables.

Description

These functions wrap their corresponding functions from the CTFS R Package, but these versions are stricter. The main differences are these:

Usage

rowcol_to_index(rowno, colno, gridsize, plotdim)

index_to_rowcol(index, gridsize, plotdim)

gxgy_to_index(gx, gy, gridsize, plotdim)

gxgy_to_lxly(gx, gy, gridsize, plotdim)

gxgy_to_qxqy(gx, gy, gridsize, plotdim)

gxgy_to_rowcol(gx, gy, gridsize, plotdim)

gxgy_to_hectindex(gx, gy, plotdim)

index_to_gxgy(index, gridsize, plotdim)

Arguments

rowno, colno

Row and column number – as defined in a census plot.

gridsize

The gridsize of the census plot (commonly 20 m).

plotdim

The global dimensions of the census plot (i.e. the maximum possible values of gx and gy).

index

Index number as defined for a census plot.

gx, gy

A number; global x and y position in a census plot.

Details

gxgy_to_qxqy() didn't exist in the original CTFS R Package. Added for consistency.

Value

A vector or dataframe (see examples).

Author(s)

Rick Condit, Suzanne Lao.

Examples

gxgy_to_index(c(0, 400, 990), c(0, 200, 490), gridsize = 20)

gridsize <- 20
plotdim <- c(1000, 500)

x <- gxgy_to_hectindex(1:3, 1:3, plotdim)
x
typeof(x)
is.data.frame(x)
is.vector(x)

x <- gxgy_to_index(1:3, 1:3, gridsize, plotdim)
x
typeof(x)
is.data.frame(x)
is.vector(x)

x <- gxgy_to_lxly(1:3, 1:3, gridsize, plotdim)
x
typeof(x)
is.data.frame(x)
is.vector(x)

x <- gxgy_to_rowcol(1:3, 1:3, gridsize, plotdim)
x
typeof(x)
is.data.frame(x)
is.vector(x)

x <- index_to_rowcol(1:3, gridsize, plotdim)
x
typeof(x)
is.data.frame(x)
is.vector(x)

x <- rowcol_to_index(1:3, 1:3, gridsize, plotdim)
x
typeof(x)
is.data.frame(x)
is.vector(x)

index_to_gxgy(1:3, gridsize, plotdim)

[Package fgeo.tool version 1.2.9 Index]