using dataframe names in a loop in R

Question

I am using the following code to access data frames df1,df2 and df3 in a loop and rename them. This gives me an error. How do I tell R that its a data frame not a

for(i in c(df1,df2,df3)) {
  colnames(data.frame(i))=c("var1","var2","var3")
}  

Answer 1

Try using a list instead

dfl=list(df1,df2,df3)
  for(i in 1:length(dfl)) {
    colnames(dfl[[i]])<-c("var1","var2","var3")
  }