How to Predict sale price in R?

r-machine-learning
#1

I am a beginner.
I am dealing with a dataset where I have categorical variables with more than 1000 and 2000 levels.
I am not sure how to deal with this.

#2

What are you trying to get out of the data?

#3

Predict sale price.
So I am not sure how to move about. I suppose I can’t use the variables as it is

#4

please provide a snapshot of your data and objective