There is sparse vector implementation in River?

[giturra]

Hi everyone!

First I want to thank you for this excellent package.

I have to replicate some features of software made in MOA. Some class of the package of the software called "SparseInstance" instance, which is a sparse vector implementation of MOA. I was reading the River documentation, but I couldn't find any similar. So I'm not sure if it exists under another name.

I'm a little curious about the VectorDict class that I could use for something similar.

Thanks, everyone :)

[MaxHalford]

Well, in River we use dicts, which are sparse by design. They don't have a predetermined length. A VectorDict is "just" a fancy dict that is optimized for algebric operations.