The r-faq tag is created to group a limited number of questions discussing problems that come up regularly on the R tag.
I have a data frame and tried to select only the observations I'm interested in by this: data[data["Var1"]&…
r filter r-faqI have a vector of different column names and I want to be able to loop over each of them …
r dataframe r-faqI have a bunch of columns in a dataframe which I want to paste together (seperated by "-") as follows: …
r paste r-faqI'm plotting and performing calculations on uniformly distributed time series. The timestamps are currently stored as integers representing the number …
r time r-faqI have an integer which I want to convert to class Date. I assume I first need to convert it …
r date r-faqWorking with a data frame similar to this: set.seed(100) df <- data.frame(cat = c(rep("aaa", 5), rep("…
r dataframe r-faqI need to create a column with unique ID, basically add the row number as an own column. My current …
r dataframe r-faqIs it possible to create new variable names on the fly? I'd like to read data frames from a list …
r assign r-faqi am having trouble understanding the difference between the R function rank and the R function order. they seem to …
r sorting r-faq