[Feature Request] NaN safety, we probably need something more than doc strings. about fsharp.stats

[smoothdeveloper]

<remarks>Returns NaN if data is empty or if any entry is NaN.</remarks>

I think we can ensure consistency based on presence of this, which seems to be in place (but it is not really discoverable in code, nor in the documentation pages.

We can also define F# analyzer that looks for functions like sqrt, that are bound to produce NaN.

If someone who groks maths (not me) could list here the F# and BCL functions that produce NaN that are used in this library, it would help with the implementation of such analyzer.

[smoothdeveloper]

One issue with open FSharp.Stats.NumericallySafe approach, is you can only switch in your code using #if precompiler directives, or otherwise, you need to pass references to functions, rebind them in your own module based on some context.

There are scenarios where I'd want this to be done without recompiling nor forcing to rebind each function of interest.