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Thus, the existence of duplicates does not affect the value of the extreme order statistics. There are other estimation techniques other than min/max sketches. The first paper on count-distinct estimation [7] describes the Flajolet–Martin algorithm, a bit pattern sketch. In this case, the elements are hashed into a bit vector and the sketch ...
The reference count of a string is checked before mutating a string. This allows reference count 1 strings to be mutated directly whilst higher reference count strings are copied before mutation. This allows the general behaviour of old style pascal strings to be preserved whilst eliminating the cost of copying the string on every assignment.
Graphical examination of count data may be aided by the use of data transformations chosen to have the property of stabilising the sample variance. In particular, the square root transformation might be used when data can be approximated by a Poisson distribution (although other transformation have modestly improved properties), while an inverse sine transformation is available when a binomial ...
Mar. 21—Question : I read an article about the whale count last month. How do they know the number is of individual whales and not whales being counted more than once ? Question : I read an ...
A counting process is a stochastic process {N(t), t ≥ 0} with values that are non-negative, integer, and non-decreasing: N(t) ≥ 0. N(t) is an integer. If s ≤ t then N(s) ≤ N(t). If s < t, then N(t) − N(s) is the number of events occurred during the interval (s, t]. Examples of counting processes include Poisson processes and Renewal ...
Blood pressure is a crucial indicator of our overall health and well-being. Prolonged high blood pressure, or hypertension, can lead to severe complications such as heart disease, stroke, kidney ...
However, even if a consistent system of accounting rules is devised that conceptually eliminates double counting, double counting may technically still occur to some extent. The first and most obvious reason is that, in actual accounting practice, boundary problems arise, because a flow of expenditures might be interpreted in different ways ...
Lane Kiffin works the spin room, furiously trying to position Ole Miss for a CFP bracket bid. It's a tough road, but he's got a case.
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related to: excel count but ignore duplicates