Update ggplot2_inclass_notebook.ipynb

Adding additional import statements for class exercises

Author: data4d

ggplot/ggplot2_inclass_notebook.ipynb

@@ -1796,6 +1796,13 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "# Import the required libraries\n",
+    "install.packages('gapminder')\n",
+    "install.packages('jsonlite')\n",
+    "library(jsonlite)\n",
+    "library(ggplot2)\n",
+    "library(gapminder)\n",
+    "\n",
     "# Data to get you started\n",
     "url = 'https://raw.githubusercontent.com/vega/vega/master/docs/data/gapminder.json'\n",
     "data <- fromJSON(url, flatten=TRUE)\n",
@@ -1857,7 +1864,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "#install.packages(\"titanic\")\n",
+    "install.packages(\"titanic\")\n",
     "library(titanic)\n",
     "data <- titanic_train"
    ]