[SciPy-User] Survival vs 1-cdf clarification

[Olga Botvinnik]

For the random variables in scipy.stats, I have a question about the
documentation. Does the statement "Survival function (1-cdf — sometimes
more accurate)." mean:

1. Survival function (also defined as 1-cdf, and the survival function
version is sometimes more accurate).
-- or --
2. Survival function (also defined as 1-cdf, and 1-cdf is sometimes more
accurate).

Thanks!
Olga
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