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Fix outdated statements in external sampler page #694

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penelopeysm merged 2 commits into from
Apr 24, 2026
Merged

Fix outdated statements in external sampler page #694

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Fix outdated statements in external sampler page
penelopeysm Apr 24, 2026
72ce8c0
Merge branch 'main' into py/fix
penelopeysm Apr 24, 2026
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4 changes: 2 additions & 2 deletions usage/external-samplers/index.qmd
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Expand Up @@ -130,11 +130,11 @@ The output of both of these methods must be a tuple containing:
- a 'transition', which is essentially the 'visible output' of the sampler: this object is later used to construct an `MCMCChains.Chains`;
- a 'state', representing the current state of the sampler, which is passed to the next step of the MCMC algorithm.

Apart from this, your sampler state should also implement `Turing.Inference.getparams(model, transition)` to return the parameters of the model as a vector.
Apart from this, your sampler state should also implement `AbstractMCMC.getparams(model, state)` to return the parameters of the model as a vector.
Here, `transition` represents the first output of the `step` function.

```julia
function Turing.Inference.getparams(model::DynamicPPL.Model, state::MyTransition)
function AbstractMCMC.getparams(model::AbstractMCMC.LogDensityModel, state::MyState)
# Return a vector containing the parameters of the model.
end
```
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