Append data frames together in a for loop

Question

I have a for loop which produces a data frame after each iteration. I want to append all data frames together but finding it difficult. Following is what I am

Answer 1

Again maRtin is correct but for this to work you have start with a dataframe that already has at least one column

model <- #some processing
df <- data.frame(col1=model)

for (i in 2:17)
{
     model <- # some processing
     nextcol <-  data.frame(model)
     colnames(nextcol) <- c(paste("col", i, sep="")) # rename the comlum
     df <- cbind(df, nextcol)
}