Outputting a Dataframe in R to a .csv

Question

So I'm trying to write a .csv file based on a data frame in R, but for some reason I keep getting the following error:

Error in .External2(C_writetable, x, file, nrow(x), p, rnames, sep, eol,  : 
  unimplemented type 'list' in 'EncodeElement

This is what traceback() is giving:

5: write.table(df, file = "df.csv", col.names = NA, 
       sep = ",", dec = ".", qmethod = "double")
4: eval(expr, envir, enclos)
3: eval(expr, p)
2: eval.parent(Call)
1: write.csv(df, file = "df.csv")

Any solution?

Answer 1

You can also coerce data frames directly in R:

my.df <- data.frame(lapply(old.df, as.character), stringsAsFactors=FALSE)

CAVEAT: this will coerce your entire dataframe to whatever type you specify. For example, if you want to coerce your dataframe to number, you would replace 'as.characater' with 'as.numeric':

 my.df <- data.frame(lapply(old.df, as.numeric), stringsAsFactors=FALSE)