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Builtins

Built-in functions available for use in specs and Python code.

Usage

These functions are available in multiple contexts:

# In !ev expressions
count: !ev normal(50, 10)

# In !_ (quoted) expressions
rate: !_ uniform(0.1, 0.5)

# In Python code
from alienbio.builtins import normal, uniform

value = normal(50, 10)

Distribution Functions

Function Description
normal(mean, std) Normal distribution sample
uniform(low, high) Uniform distribution sample
lognormal(mean, sigma) Log-normal distribution
poisson(lam) Poisson distribution
exponential(scale) Exponential distribution
choice(options) Random choice from list
discrete(weights) Weighted random index

Safe Python Builtins

These Python builtins are available in expressions:

abs, min, max, sum, len, range, int, float, str, list, dict, True, False, None

See Also