The matrix algebra and array manipulation is written in C++. The statistical analysis is done in R, potentially using multiple different matrix algebra routines. For example.
I have no idea why you would not use R (or python) «at the top», though. R might not have great libraries for network protocols (REST, etc), as it’s not a general language, but more stats oriented.
I have no idea why you would not use R (or python) «at the top», though. R might not have great libraries for network protocols (REST, etc), as it’s not a general language, but more stats oriented.