[R-sig-Geo] help with dismo biovars when using rasterStacks

[Robert Hijmans]

Meg, 

> Hello. 
> I'm trying to work my way through creating the bioclim variables using the 
> biovars function. 
> (...)
> out <- brick(raster(prec)) 
>          out at data@nlayers <- 19 

I think this should have been 

  out at data@nlayers <- as.integer( 19 )

I fixed the function in version 0.5-13, and the below works

library(dismo)
tmin = tmax = prec = brick(nrow=1, ncol=1)
tmin <- setValues(tmin, t(matrix(c(10,12,14,16,18,20,22,21,19,17,15,12))))
tmax <- tmin + 5
prec <- setValues(prec, t(matrix(c(0,2,10,30,80,160,80,20,40,60,20,0))))
b <- biovars(prec, tmin, tmax)
as.matrix(b)


Robert
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