Big Book of R

R especially dplyr/tidyverse is so underrated. Working in ML engineering, I see a lot of my coworkers suffering through pandas (or occasionally polars or even base Python without dataframes) to do basic analytics or debugging, it takes eons and gets complex so quickly that only the most rudimentary checks get done. Anyone working in data-adjacent engineering work would benefit from R/dplyr in their toolkit.

what’s the story integrating R code into larger software systems (say, a saas product)?

I’m sure part of Python’s success is sheer mindshare momentum from being a common computing denominator, but I’d guess the integration story is part of the margins. Your back end may well already be in python or have interop, reducing stack investment and systems tax.

It's getting a lot better, but R in production was something companies 10 years ago would say "so we figured out a way".

The problem is pinning dependencies. So while an R analysis written using base R 20 or 30 years ago works fine, something using dplyr is probably really difficult to get up and running.

At my old work we took a copy of CRAN when we started a new project and added dependencies from then.

So instead of asking for dplyr version x.y, as you'd do ... anywhere, we added dplyr as it and its dependencies where stored on CRAN on this specific date.

We also did a lot of systems programming in R, which I thought of as weird, but for the exact same reason as you are saying for Python.

But R is really easy to install, so I don't see why you can't setup a step in your pipeline that does R - or even both R and Python. They can read dataframes from eachothers memory.