The problem is, if we change sampling rates dynamically as we did on Friday, we are forced into a mixed sampling rate world.
This is only relevant if we are using sampling data to calculate absolute counts. For percentiles and means it doesn't matter as long as you are not using two datasets sampled at a different ratio to calculate, say, an average.
On Tue, May 20, 2014 at 7:36 PM, Dan Andreescu dandreescu@wikimedia.org wrote:
I agree that there's no reason to re-weight the observations under a consistent sample. The only reason I might re-weight based on the sample would be if I were combining data with different sampling rates.
The problem is, if we change sampling rates dynamically as we did on Friday, we are forced into a mixed sampling rate world. I think this deserves some real focus.
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