Now I have the forest plot data with x, y locations, and I measured the DBH for
every indivicuals.
The data looks like that:
x=runif(100,0,100)
y=runif(100,0,100)
dbh=runif(100,1,100)
rdata=data.frame(x,y,dbh)
> rdata[1:5,]
x y dbh
1 99.5354145 1.412844 34.10112
2 0.8259361 87.737036 39.12914
3 6.5678613 65.699032 22.55990
4 67.2987881 72.053877 45.83978
5 2.2491372 23.622898 68.77065
My question is: How can I plot the grid (25¡Á25,5¡Á5,...) figure by DBH?
Can you introduce a simply method to do it by R language? I know that it can be
done very easy by the software ArcGis.
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Thanks very much.
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