prspace
Probability spaces with the same syntax in Python and R: Pr[X == 0] = 0.25.
Alpha. The API may change between 0.x releases.
import math
from prspace import PrSpace, Event
n_samples = math.comb(19, 10)
Pr = PrSpace()
S_B = Event()
for B in (100, 1000):
Pr[S_B == 0] = math.prod(1 - k / n_samples for k in range(B))
Pr[S_B >= 1] = 1 - Pr[S_B == 0]
print("Pr[S_B >= 1] =", Pr[S_B >= 1])
print(Pr)
# PrSpace with 2 probabilities:
# Pr[S_B == 0] = 0.004397413
# Pr[S_B >= 1] = 0.9956026
- Complements are derived: after
Pr[X == 0] = 0.25,Pr[X != 0]andPr[~(X == 0)]are0.75. - Reading a condition that was never assigned raises
UndefinedProbabilityError(aKeyError). - Event names are inferred from the variable they're bound to, or pass
Event("name").
The R package has the same syntax. See the repository for both.
1 maintainer
Metadata
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Release files for prspace 0.1.0
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