one way is the following:
df <- data.frame(month = as.character(rep(1:3, each = 30)), fac =
factor(rep(1:2, each = 15)), data1 = round(runif(90), 2), data2 =
round(runif(90), 2))
lapply(split(df, df$month), function(x) split(x, x$fac))
I hope it helps.
Best,
Dimitris
Lauri Nikkinen wrote:
R users,
I would like to split this df by month and fac and produce list of sublists
df <-
data.frame(month=as.character(rep(1:3,each=30)),fac=factor(rep(1:2,each=15)),
data1=round(runif(90),2),
data2=round(runif(90),2))
This
split(df, paste(df$month, df$fac))
produces just a single list. Any ideas?
Many thanks,
Lauri
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--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center
Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
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and provide commented, minimal, self-contained, reproducible code.
