Generating variable names for dataframes based on the loop number in a loop in R

Question

I am working on developing and optimizing a linear model using the lm() function and subsequently the step() function for optimization. I have added a variable to my dataframe b

Answer 1

Don't create objects with numbers in their names, and then try and access them in a loop later, using get and paste and assign. The right way to do this is to store your elements in an R list object.

Answer 2

For your first question:

You can create the strings as before, using

df.names <- paste(("Run",1:10,sep="")

Then, create your for loop and do the following to give the data frames the names you want:

for (i in 1:10){
   d.frame <- # create your data frame here
   assign(df.name[i], d.frame)
}

Now you will end up with ten data frames with ten different names.

For your second question about the coefficients:

As far as I can tell, these don't naturally fit into your data frame structure. You should consider using lists, as they allow different classes - in other words, for each run, create a list containing a data frame and a numeric vector with your coefficients.