fix: test_data referenced before assignment

Author: abhiojha8

project-bikesharing/Predicting_bike_sharing_data.ipynb

@@ -128,14 +128,20 @@
    },
    "outputs": [],
    "source": [
+    "# Save data for approximately the last 21 days \n",
+    "test_data = data[-21*24:]\n",
+    "\n",
+    "# Now remove the test data from the data set \n",
+    "data = data[:-21*24]\n",
+    "\n",
     "quant_features = ['casual', 'registered', 'cnt', 'temp', 'hum', 'windspeed']\n",
     "# Store scalings in a dictionary so we can convert back later\n",
     "scaled_features = {}\n",
     "for each in quant_features:\n",
     "    mean, std = data[each].mean(), data[each].std()\n",
     "    scaled_features[each] = [mean, std]\n",
     "    data.loc[:, each] = (data[each] - mean)/std\n",
-    "    test_data.loc[:, each] = (test_data[each] - mean)/std\n"
+    "    test_data.loc[:, each] = (test_data[each] - mean)/std"
    ]
   },
   {
@@ -155,12 +161,6 @@
    },
    "outputs": [],
    "source": [
-    "# Save data for approximately the last 21 days \n",
-    "test_data = data[-21*24:]\n",
-    "\n",
-    "# Now remove the test data from the data set \n",
-    "data = data[:-21*24]\n",
-    "\n",
     "# Separate the data into features and targets\n",
     "target_fields = ['cnt', 'casual', 'registered']\n",
     "features, targets = data.drop(target_fields, axis=1), data[target_fields]\n",
@@ -459,4 +459,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 2
-}
+}