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hilaryparker/results.R

Created August 25, 2014 18:23
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how I make results dataframes
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results.R
results <- tbl_df(as.data.frame(matrix(nrow=length(users), ncol=2)))
# what I would love
create_tbl_df(nrow=length(users), ncol=2)
@earino
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earino commented Aug 25, 2014

i do:

results <- data.frame(colA=rep(0, length(users)), colB=0)

so I also want to know what I should have been doing all along.

@gshotwell
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If you don't have a list of unique users then I would do it like this:

library(dplyr)
results<- DF %>%
  group_by(User) %>%
  summarise(col_name = NA)

Another option if you do have a unique user list is:

library(dplyr)
results<- data.frame(users) %>%
  mutate(col_name = NA)

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