Variable name of a data frame in R

Question

I want to create numerous data.frames so I wanted to automate it a bit.

## Some Loop   
i = i + 1
(paste('df',i,sep = '')) = data.frame(matrix(NA, nrow = 5, ncol = 1))
## Do some Task

If I initialise i to 1, then for N passes through the loop I will create df1, df2 ... dfN.

But this doesn't work.

Do you have any ideas how I can fix my code/ a different approach I could look at?

Thanks,

Ben

You should store the dataframes in a data structure such as a list, which you should initialize outside of your loop — yeedle, May 01 '17 at 13:58
Or you can use `assign` to assign the data.frame to a name defined by a string (as you are trying to do) - but yeedle's list approach is usually more sensible. — Andrew Gustar, May 01 '17 at 14:02

score 1 · Answer 1 · answered May 01 '17 at 14:02

1

Try:

for(i in 1:10) {
  d = data.frame(matrix(NA, nrow = 5, ncol = 1))
  assign(paste("df", i, sep = ""), d)
}

answered May 01 '17 at 14:02

timfaber

1 Answers1