The R data.
I am not able to open install the ggplot2 and data.table packages. It gives me the following error (example …
r ggplot2 data.tableHow can we select multiple columns using a vector of their numeric indices (position) in data.table? This is how …
r data.tableFrom a data frame, is there a easy way to aggregate (sum, mean, max et c) multiple variables simultaneously? Below …
r dataframe data.table aggregate r-faqLet's say I have the following data.table in R: library(data.table) DT = data.table(x=rep(c("b","…
r string sorting data.table keyTo get rid of a column named "foo" in a data.frame, I can do: df <- df[-grep(…
r data.tableOverview I'm relatively familiar with data.table, not so much with dplyr. I've read through some dplyr vignettes and examples …
r data.table dplyrThere are a lot of posts about replacing NA values. I am aware that one could replace NAs in the …
r replace dataframe data.table naI am exporting data from R with the command: write.table(output,file = "data.raw", na "-9999", sep = "\t", row.…
r dataframe type-conversion data.tableIn R, I have an operation which creates some Inf values when I transform a dataframe. I would like to …
r dataframe data.tableI have a data table with a bunch of columns, e.g.: dt<-data.table(matrix(runif(10*10),10,10)) I want …
r data.table