Merge pull request #31 from canyon289/arviz

Add ArviZ to to env and 02-Instructor

Author: ericmjl

environment.yml

@@ -20,3 +20,4 @@ dependencies:
 - nodejs
 - pip:
   - pyjanitor
+  - arviz

notebooks/02-Instructor-Parameter_estimation_hypothesis_testing.ipynb

@@ -20,6 +20,7 @@
     "import matplotlib.pyplot as plt\n",
     "import pymc3 as pm\n",
     "from ipywidgets import interact\n",
+    "import arviz as az\n",
     "%matplotlib inline\n",
     "sns.set()"
    ]
@@ -374,7 +375,7 @@
     "with Model:\n",
     "    samples = pm.sample(2000, njobs=1)\n",
     "\n",
-    "pm.plot_posterior(samples);"
+    "az.plot_posterior(samples, kind='hist');"
    ]
   },
   {
@@ -458,7 +459,7 @@
     "with model:\n",
     "    samples = pm.sample(2000, njobs=1)\n",
     "    \n",
-    "pm.plot_posterior(samples);"
+    "az.plot_posterior(samples);"
    ]
   },
   {
@@ -540,7 +541,7 @@
    "source": [
     "with Model:\n",
     "    samples = pm.sample(2000, njobs=1)\n",
-    "pm.plot_posterior(samples);"
+    "az.plot_posterior(samples, kind='hist');"
    ]
   },
   {
@@ -598,7 +599,7 @@
     "# bust it out & sample\n",
     "with model:\n",
     "    samples = pm.sample(2000, njobs=1)\n",
-    "pm.plot_posterior(samples, varnames=['μ_1', 'μ_2', 'diff_means', 'effect_size']);"
+    "az.plot_posterior(samples, var_names=['μ_1', 'μ_2', 'diff_means', 'effect_size'], kind='hist');"
    ]
   }
  ],
@@ -618,7 +619,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.6"
+   "version": "3.6.8"
   }
  },
  "nbformat": 4,