davidr, #data #datascience peeps, hear my cry!
Let's say there's a periodic process that I'm sampling. The period is changing slowly (<1% per cycle). I get a sample on a lot of the cycles, but not necessarily every one.
I'm sure I can bodge together an #algorithm to figure out the "fundamental period" and how it is changing over time, but I also bet something already exists.
What's my #search keyword?