R doesn't give you magic code. I have worked on several projects where my job was to rewrite the R code that took over a day to run in Python. Each time I was (

R doesn't give you magic code. I have worked on several projects where my job was to rewrite the R code that took over a day to run in Python. Each time I was (fairly easily) able to get to a place where the Python code ran in < minute. Mostly this was because the people who developed the R code had no good concept of data structures.