Closed bob-carpenter closed 3 months ago
@avehtari commented via email: I think we should emphasize the common meaning of the tilde in statistics "has the distribution (of)", for example, y ~ normal(mu, sigma)
should be read as "y
is distributed as normal(mu, sigma)
".
I like this better, but it's still potentially confusing in that if we write theta ~ uniform(0, 1)
for a parameter theta
, it doesn't have a uniform(0, 1)
distribution in the posterior.
@andrewgelman responded via email: I would not want to write it as "y
is distributed as normal(mu, sigma)
" because consider this example:
theta ~ normal(0, 1);
theta ~ normal(0, 1);
for which it is not true that theta
has a normal(0, 1)
distribution!
Summary:
The
~
notation continues to trip up users.Description:
See summary.
Current Version:
v2.20something