Fix example

Author: jacobtomlinson

00_overview.ipynb

@@ -54,7 +54,7 @@
    "source": [
     "ddf = dd.read_parquet(\n",
     "    \"s3://coiled-data/uber/\",\n",
-    "    columns=[\"passenger_count\", \"tip_amount\"],\n",
+    "    columns=[\"tips\"],\n",
     "    storage_options={\"anon\": True},\n",
     ")"
    ]
@@ -65,7 +65,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "result = ddf.groupby(\"passenger_count\").tip_amount.mean().compute()\n",
+    "result = ddf[\"tips\"][ddf[\"tips\"] > 0].mean().compute()\n",
     "result"
    ]
   },