Message-ID: <8793B000-59F0-4E47-9B9F-ABC4734ED548@comcast.net>
Date: 2012-02-08T21:19:47Z
From: David Winsemius
Subject: Split dataframe into new dataframes
In-Reply-To: <C377C677-23E5-400B-BEBD-659F7BB89EA4@gmx.at>
On Feb 8, 2012, at 4:11 PM, Johannes Radinger wrote:
> Hi,
>
> I want to split a dataframe based on a grouping variable (in one
> column). The resulting new
> dataframes should be stored in a new variable. I tried to split the
> dataframe using split() and
> to store it using a FOR loop, but thats not working so far:
>
> df <- data.frame(A=c("A1","A1","A2","A2"),B=seq(1:4))
>
> Fsplit <- function(x,y){
> ls <- split(x,f=x$y)
> for (i in names(ls)){
> i <- ls$i
> }
> }
>
> Fsplit(df,A) #1st argument is dataframe to split, 2nd argument
> grouping variable
>
It appears you want the name of the levels of df$A to be the names of
separate variables in the global environment. If that is correct, then
see the FAQ. I'm not sure which one it is among the Miscellaneous
section, but you should be looking of the one that tells you how to
construct a named variable.
Or:
? assign
--
David Winsemius, MD
West Hartford, CT