Topic: Spatial

Topic Description:

Functions for calculating Ripley's K from CTFS R Analytical Tables, many routines for quadrat-based calculations. and calculations of wavelet variance.

File: spatial/quadfunc.r
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Function: rowcol.to.index

Function Description: rowcol.to.index

None given.

Function Arguments:

ArgumentDefault Value
rowno
colno
gridsize20
plotdimc(1000,500)

Function Source:

rowcol.to.index=function(rowno,colno,gridsize=20,plotdim=c(1000,500))
{
badrc=(rowno<=0 | colno<=0 | rowno>plotdim[2]/gridsize | colno>plotdim[1]/gridsize)

rowno=rowno-1
colno=colno-1
maxrow=floor(plotdim[2]/gridsize)
index=colno*maxrow+rowno+1
if(length(badrc[badrc>0])) index[badrc]=NA
return(index)
}