Magics for defining stan code in notebooks.
Project description
jupyterstan
jupyterstan
is a package to help development of Stan models (using pystan
)
in jupyter notebooks.
The package is heavily based on Arvinds-ds
stanmagic package, but provides an
interface that simply returns a pystan.Model
object.
In addition, it bundles Arvinds-ds stan_code_helper
package to improve
syntax highlighting for stan cells.
Installation
To install the library:
pip install jupyterstan
Usage
To use the magic
in your notebook, you need to lead the extension:
%load_ext jupyterstan
To define a stan model inside a jupyter notebook, start a cell with the %%stan
magic. You can also provide a variable name, which is the variable name that
the pystan.Model
object will be assigned to. For example:
%%stan paris_female_births
data {
int male;
int female;
}
parameters {
real<lower=0, upper=1> p;
}
model {
female ~ binomial(male + female, p);
}
Then, to use your defined model:
fit = paris_female_births.sampling(
data={'male': 251527, 'female': 241945},
iter=1000,
chains=4
)
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