How to put data frame index inside a for loop in r?

Question

I have a code that I want it to be repeated for three times, at each time I have outputs of data frame as df1, df2,... and inside this loop I have another loop that says bind this data frames by row, my problem is how to put index to " e<-bind_rows(listdf))" (I should have three "e" ) so at the end I could bind the three "e"s and have one dataframe including df1, df2,... for three repeats of index i.

In advance, I really appreciate your response.

for (i in 1:3){
(there are some codes in here which uses i as index and gives:)
df1=...
df2=...

listdf<-list()
for (j in 1:20){
z <- j
sdf <- paste("df", z, sep="")
ddf <- get(paste("df", z, sep=""))
listdf[[sdf]] <-ddf
}
e<-bind_rows(listdf)) 

}

It's hard to tell exactly what you are doing here with the ... and whatnot. It's easier to help you if you include a simple reproducible example with sample input and desired output that can be used to test and verify possible solutions. It's better to avoid get/assign and just work with proper lists of data.frames. — MrFlick
– MrFlick, Commented Feb 27, 2019 at 21:29

Alejandro Andrade · Accepted Answer · 2019-02-27 21:28:59Z

1

You can use the assign function to save each e with lets say a number beside it. It will be something like this:

assign(paste0("e",i),bind_rows(listdf))

You will end up with e1, e2 and e3

answered Feb 27, 2019 at 21:28

Alejandro Andrade

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1 Comment

Helia Over a year ago

Thank you so much!

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