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Add post on missing values #770

Closed nalimilan closed 6 years ago

nalimilan commented 6 years ago

As promised a long time ago.

Comments welcome on contents, technical details, phrasing, presentation, etc.

ViralBShah commented 6 years ago

Would it be possible to add some timings to the kinds of code patterns that have been reported to be slow - like John Myles White's blog etc.? Just @time ... to show how fast things are.

If there are obvious comparisons that can be done with R and Python missing value handling, that would be of broader interest to readers who are not already Julia users - but that may be a bit more work.

nalimilan commented 6 years ago

Would it be possible to add some timings to the kinds of code patterns that have been reported to be slow - like John Myles White's blog etc.? Just @time ... to show how fast things are.

I'll have a look. Hopefully my claims will be confirmed... :-p

If there are obvious comparisons that can be done with R and Python missing value handling, that would be of broader interest to readers who are not already Julia users - but that may be a bit more work.

What kind of comparison do you have in mind? I tend to think the examples are simple enough that readers should be able to identify the equivalent in languages they know very easily.

nalimilan commented 6 years ago

I've added benchmarks now that inlining works (https://github.com/JuliaLang/julia/pull/27651), and improved a few things. More comments before merging?

davidanthoff commented 6 years ago

Could you change the ack to be more the standard academic language ("thanks X, Y and Z for input, not implying they agree" bla bla)? The current version reads a bit as if there was a consensus about the design, which at least in my case is not the case.

nalimilan commented 6 years ago

Can you suggest a wording? I think apart from you the other people I've cited generally agree with the design. I can put you in a separate sentence if you prefer, though it could sound a bit weird.

davidanthoff commented 6 years ago

I don't really care what language you use, as long as you don't give the impression that I'm on board with this design.

nalimilan commented 6 years ago

I don't really care what language you use, as long as you don't give the impression that I'm on board with this design.

Precisely, I don't know how to phrase that. Currently I just say you participated in discussions.

nalimilan commented 6 years ago

I've tried something, please tell me whether it's OK for you.

I'll merge tomorrow if there are no additional comments.

davidanthoff commented 6 years ago

Sounds good, thanks!