Merge pull request #732 from py-why/fix/dowhy_functional_api_notebook_data_generation

Set seed on data generation for deterministic test

docs/source/example_notebooks/dowhy_functional_api.ipynb

@@ -88,6 +88,12 @@
     "    },\n",
     "}\n",
     "\n",
+    "\n",
+    "# set random seed for deterministic dataset generation \n",
+    "# and avoid problems when running tests\n",
+    "import numpy as np\n",
+    "np.random.seed(1)\n",
+    "\n",
     "logging.config.dictConfig(DEFAULT_LOGGING)\n",
     "# Disabling warnings output\n",
     "import warnings\n",
@@ -306,10 +312,10 @@
    "outputs": [],
    "source": [
     "estimate_causal_model_api = causal_model.estimate_effect(\n",
-    "    identified_estimand, method_name=\"backdoor.propensity_score_matching\"\n",
+    "    identified_estimand_causal_model_api, method_name=\"backdoor.propensity_score_matching\"\n",
     ")\n",
     "\n",
-    "print(estimate)"
+    "print(estimate_causal_model_api)"
    ]
   },
   {
@@ -325,12 +331,13 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "bootstrap_refutation_causal_model_api = causal_model.refute_estimate(identified_estimand, estimate, \"bootstrap_refuter\")\n",
+    "bootstrap_refutation_causal_model_api = causal_model.refute_estimate(identified_estimand_causal_model_api, estimate_causal_model_api, \"bootstrap_refuter\")\n",
     "print(bootstrap_refutation_causal_model_api)\n",
     "\n",
     "data_subset_refutation_causal_model_api = causal_model.refute_estimate(\n",
-    "    identified_estimand, estimate, \"data_subset_refuter\"\n",
+    "    identified_estimand_causal_model_api, estimate_causal_model_api, \"data_subset_refuter\"\n",
     ")\n",
+    "\n",
     "print(data_subset_refutation_causal_model_api)"
    ]
   },