Returns the marginal contribution to the fill rate by stock position.
Example
r = poisson(3)
show scalar "poisson(3)" a1c3 with r
show scalar "fillrate(poisson(3))" a4c6 with fillrate(r)
Remarks
Inputs with negative support
Providing an input ranvar r that has negative numbers in its support is supported, and the obtained fillrate will be the same as if the conditional distribution $r|r>0$ was provided as an input instead.
The fillrate of a dirac(0) is dirac(0).
Cumulated fill rate
The cumulated fill rate associated with a ranvar can be obtained with the function cdf.
r = poisson(3)
marginalFillrate = fillrate(r)
cumulatedFillrate = cdf(marginalFillrate)