Re: [R] dplyr/summarize does not create a true data frame

an convert back to a true data frame > > > as.data.frame(after.group_by)[4] >Value > 1 69.47 > 2 64.61 > ...etc. > > ## dput() code below > > structure(list(Id = structure(1:10, .Label = c("P01", "P02"

Re: [R] dplyr/summarize does not create a true data frame

structure(list(Id = structure(1:10, .Label = c("P01", "P02", "P03", "P04", "P05", "P06", "P07", "P08", "P09", "P10"), class = "factor"), Sex = structure(c(2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L

Re: [R] dplyr/summarize does not create a true data frame

100 ) dat1[2] John Kane Kingston ON Canada > -Original Message- > From: john.pos...@mjbiostat.com > Sent: Fri, 21 Nov 2014 17:10:16 +0000 > To: r-help@r-project.org > Subject: [R] dplyr/summarize does not create a true data frame > > I got an error when trying

[R] dplyr/summarize does not create a true data frame

I got an error when trying to extract a 1-column subset of a data frame (called "my.output") created by dplyr/summarize. The ncol() function says that my.output has 4 columns, but "my.output[4]" fails. Note that converting my.output using as.data.frame() makes for a happy ending. Is this the in