Converting list of lists into dataframes
In the absence of a reproducible example (your example is not
reproducible as is), try this:
names(help.me) <- as.character(2:4)
library('plyr')
newDF <- ldply(help.me, rbind)
newDF[['.id']] <- as.numeric(newDF[['.id']])
ldply will create a new column named .id that contains the name of the
list component (hence the choice of names). The post-processing to
convert the characters to numeric values should get you the result you
want.
HTH,
Dennis
On Mon, Oct 17, 2011 at 2:11 PM, xhan <xhan at lifesci.ucsb.edu> wrote:
Hi, I have a list of lists that I would like to convert into a dataframe such that the name(?) of the individual lists is replicated as rows with each item in the list listed in another column. I have provided a partial from my list: (let's say the list is called "help.me") [[2]] ?[1] 18 27 11 18 12 15 12 14 ?7 17 15 16 12 19 14 21 13 13 20 20 16 15 18 11 14 ?[26] 10 11 15 ?9 16 12 17 20 12 11 15 15 16 14 14 12 15 14 11 19 12 18 24 12 ?8 ?[51] 14 13 13 15 16 ?9 13 11 17 ?8 ?8 15 18 11 12 16 12 12 12 13 12 25 21 11 ?8 ?[76] 19 ?5 10 13 16 11 13 11 16 ?7 12 15 15 16 11 ?9 10 15 ?7 16 12 11 13 12 12 [[3]] ?[1] 18 27 12 18 18 17 12 16 ?7 17 16 18 14 19 16 22 13 14 22 20 16 15 20 14 14 ?[26] 11 11 16 ?9 16 12 19 20 12 11 17 15 17 14 14 14 15 15 11 19 13 18 25 13 10 ?[51] 14 13 14 15 18 10 13 11 18 12 10 15 20 13 12 17 13 13 12 16 12 26 22 11 ?8 ?[76] 21 ?6 10 14 18 11 14 11 16 ?8 14 17 16 17 11 10 10 16 ?7 20 13 11 13 12 14 [[4]] ?[1] 18 27 12 18 18 17 12 16 ?7 17 16 18 14 19 16 22 13 14 22 20 16 15 20 14 14 ?[26] 11 11 17 ?9 16 12 19 20 12 11 17 15 17 14 14 14 15 15 11 19 13 18 25 13 10 ?[51] 14 13 14 15 18 10 13 11 18 12 10 15 20 13 12 17 13 13 12 17 12 26 22 11 ?8 ?[76] 21 ?6 10 14 18 11 14 11 16 ?8 14 17 17 17 11 10 10 16 ?7 20 13 11 13 12 14 What I would like is two columns: Column1 ? ? ? ? ? ? ? ?Column2 2 ? ? ? ? ? ? ? ? ? ? ? ? ?18 2 ? ? ? ? ? ? ? ? ? ? ? ? ?27 2 ? ? ? ? ? ? ? ? ? ? ? ? ?11 2 ? ? ? ? ? ? ? ? ? ? ? ? ?18 2 ? ? ? ? ? ? ? ? ? ? ? ? ?12 2 ? ? ? ? ? ? ? ? ? ? ? ? ?15 . ? ? ? ? ? ? ? ? ? ? ? ? ? . . ? ? ? ? ? ? ? ? ? ? ? ? ? . . ? ? ? ? ? ? ? ? ? ? ? ? ? . 3 ? ? ? ? ? ? ? ? ? ? ? ? ?18 3 ? ? ? ? ? ? ? ? ? ? ? ? ?27 3 ? ? ? ? ? ? ? ? ? ? ? ? ?12 . ? ? ? ? ? ? ? ? ? ? ? ? ? . . ? ? ? ? ? ? ? ? ? ? ? ? ? . . ? ? ? ? ? ? ? ? ? ? ? ? ? . And so forth. I would appreciate any help, thanks so much! Shirley~ -- View this message in context: http://r.789695.n4.nabble.com/Converting-list-of-lists-into-dataframes-tp3913433p3913433.html Sent from the R help mailing list archive at Nabble.com.
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