I want to make a variable of several repeating string values in R-CodePudding

I want to make a data frame that has a single variable with 345 entries as follows: entries 1:149 to be "2020", entries 150:297 to be "2021" and entries 298:345 to be "2022".

I am entirely not sure how to put this together. I feel like it is a simple problem but I have been at this for an hour with no progress. I would extremely appreciate any help!

CodePudding user response：

You can use rep to repeat a string for a desired number of time.

data.frame(year = c(rep("2020", 149), 
                    rep("2021", 297 - 150   1), 
                    rep("2022", 345 - 298   1)))

Or set a dataframe with an empty column named year, and set row values accordingly.

df <- data.frame(year = "")

df[1:149,] <- "2020"
df[150:297, ] <- "2021"
df[298:345,] <- "2022"

CodePudding user response：

You can use the times argument in rep to make this a bit easier:

df <- data.frame(year = as.character(rep(2020:2022, times = c(149, 148, 48))))