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:
names use "_" not ".".
argument gridsize defaults to missing to force the user to provide it.
If the argument
plotdim
is missing from functionsgxgy_fun()
, its value will be guessed and notified.
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 |
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)