[R-sig-Geo] Learning "raster"

Robert Hijmans r.hijmans at gmail.com
Wed Jan 26 04:28:03 CET 2011


> But now I don' see an approach to subsetting this on the temporal domain. 
> Does raster support this kind of analysis? 

x <- subset(ss, 2:10)
x <- ss[[2:10]]

But perhaps you do not need to subset, as you can probably use 'stackApply'
for your purposes

> cellStats should be able to handle multiple layers and calculate the 
> statistics using data from each layer.  Is that right ? 


> Jan.ras <-  raster(Jan) 

You could try:
 Jan.ras <-  brick(Jan) 

> What can you recommend to help me. I'm currently reading the "Introduction 
> to the 'raster' package (1.7.-29) and the manual for the raster package as 
> well. 

Steven Mosher has a couple of scripts on his blog that deal with climate
data in ncdf files. That is probably the best place to go given that you are
doing something similar. http://stevemosher.wordpress.com/

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