Fix lotkavolterra (#385)

* Initial commit with changelog * Change prior parameters to follow ones from the given reference
elfi-dev · Aug 19, 2021 · 5e68480 · 5e68480
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diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -1,6 +1,7 @@
 Changelog
 =========
 
+- Change lotka-volterra priors to follow the given reference
 - Fix README.md badges
 - Fix a few small issues with CONTRIBUTING.rst
 - Add Github Actions based CI workflow

diff --git a/elfi/examples/lotka_volterra.py b/elfi/examples/lotka_volterra.py
@@ -170,9 +170,9 @@ def get_model(n_obs=50, true_params=None, seed_obs=None, **kwargs):
     priors = []
     sumstats = []
 
-    priors.append(elfi.Prior(ExpUniform, -2, 0, model=m, name='r1'))
-    priors.append(elfi.Prior(ExpUniform, -5, -2.5, model=m, name='r2'))  # easily kills populations
-    priors.append(elfi.Prior(ExpUniform, -2, 0, model=m, name='r3'))
+    priors.append(elfi.Prior(ExpUniform, -6., 2., model=m, name='r1'))
+    priors.append(elfi.Prior(ExpUniform, -6., 2., model=m, name='r2'))  # easily kills populations
+    priors.append(elfi.Prior(ExpUniform, -6., 2., model=m, name='r3'))
     priors.append(elfi.Prior('poisson', 50, model=m, name='prey0'))
     priors.append(elfi.Prior('poisson', 100, model=m, name='predator0'))
     priors.append(elfi.Prior(ExpUniform, np.log(0.5), np.log(50), model=m, name='sigma'))