Append and replacing data in r

Question

I am writing a few lines of codes to create a data table full of NAs but don't know how to append the data of results into the data table I created while replacing the position of NAs.
Here is my data table

games<-10
game_results<-as.data.frame(matrix(NA,games,3))
install.packages("data.table")
library(data.table)
setnames(game_results,c("V1","V2","V3"),c("winner","round","winnerscore"))
game_results

Danyl Denysenko · Answer

You could change in this case with command

game_results$winner[1] <- "Dad"

But this copies the whole table, so i will recomend you to create an empty data in another way

game_results <- setNames(data.table(matrix(nrow = 10, ncol = 3)), c("winner","round","winnerscore"))

and assignment by reference in the way you prefer (hole column or specific cell), here instructions for both cases.

Append and replacing data in r

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