@inmysocks What's wrong with matlab?
I used to have to do analysis of particle collider data, and I had to use ROOT by CERN, it was literally the worst thing ever. I ended up writing an exporter that would export all the data so I could read it in matlab so I could present it in an actual nice fashion.
I bust out matlab about once every 3 months for solving gamedev problems too.
@inmysocks I guess you dislike it because you're working with big data? I mostly used to use it for statistical analysis of experiments I'd done (and now use it for things like balancing systems), and obviously.. with small data sets on gigahertz processors, everything is instant.
It's very low barrier to entry, easy to understand, good at manipulating matrices (obvs), great at making pretty graphs to show data, very simple for quickly polyfitting (and other fits) etc.