tracts.util

General-purpose helpers used across the package: a stderr-printing convenience function, a same-sign check, and the transformations between physical (time/rate/sex-bias) parameter space and the unconstrained space used internally by the optimizer.

Functions

all_same_sign(lst)	Check whether all elements in a list have the same sign.
eprint(*args, **kwargs)	Print to the standard error stream.
rate_to_optimizer_function(x)	Convert a rate parameter from physical space to optimizer space.
rate_to_physical_function(x)	Convert a rate parameter from optimizer space to physical space.
sex_bias_to_optimizer_function(y)	Convert a sex-bias parameter from physical space to optimizer space.
sex_bias_to_physical_function(x)	Convert a sex-bias parameter from optimizer space to physical space.
time_to_optimizer_function(x)	Convert a time parameter from physical space to optimizer space.
time_to_physical_function(x)	Convert a time parameter from optimizer space to physical space.