Message-ID: <1349358869531-4645011.post@n4.nabble.com>
Date: 2012-10-04T13:54:29Z
From: anto.r
Subject: convert multi dimensional array to list
I have an 4D named array (the result of recast() on a dataframe) and would
like to convert it to a list with the names retained.
Example:
>my.df<-expand.grid(name=c("Alf","Que"), month=c("May","Jun"),
year=c("2011","2012"))
>my.df$tmax<-sample(15:20,4)
>my.df$tmin<-sample(10:15,4)
>my.df.melt=melt(my.df)
>my.df.cast=cast(my.df.melt, year~name~month~variable)
I want to convert it to a list so I can access the elements by name like
>my.df.cast$tmax$May
to get the corresponding year-name matrix
This assuming, lists provide an easier way to handle this data. Does it?
Also, may be there is a way to get the list I want from my.df without going
through the melt and cast. Any suggestions are welcome.
Thanks in advance
Anto
PS: I came across threads for converting list to array but not the other way
round.
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