Hi All,
If given a dataframe (long form) with Year, Species, and Location,
How would I write a function that would create a unique matrix of Species &
Location for each Year?
What I've tried doing is the following:
data #dataframe
dataT<-table(data$Species,data$Location,data$Year) #creates tables of
Species vs Location for each Year
But I'm encountering issues individually indexing the tables and converting
them into matrices in one fell swoop.
r1997<-as.matrix(tableT[,,"1997"]) #How I would do it individually; but I
can I make matrices for each year as a function?
Thanks in advance for your suggestions!
--
Lanna Jin
lanna...@gmail.com
510-898-8525
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