From 25981b6312dfda98a3d609afb60b0aba2da87679 Mon Sep 17 00:00:00 2001
From: warwick <chris@darnand.net>
Date: Sun, 17 Feb 2019 21:44:22 +0900
Subject: [PATCH] df.query() as an alternative to chained conditions

---
 tutorials/things_in_pandas.ipynb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tutorials/things_in_pandas.ipynb b/tutorials/things_in_pandas.ipynb
index 968d734..f9d8715 100644
--- a/tutorials/things_in_pandas.ipynb
+++ b/tutorials/things_in_pandas.ipynb
@@ -2662,7 +2662,8 @@
    "source": [
     "# Selecting only those players that either playing for Arsenal or Chelsea\n",
     "\n",
-    "df[ (df['team'] == 'arsenal') | (df['team'] == 'chelsea') ]"
+    "# df[ (df['team'] == 'arsenal') | (df['team'] == 'chelsea') ]\n",
+    "df.query(\"team in ('arsenal','chelsea')\")\n"
    ]
   },
   {
@@ -2726,7 +2727,8 @@
    "source": [
     "# Selecting forwards from Arsenal only\n",
     "\n",
-    "df[ (df['team'] == 'arsenal') & (df['position'] == 'forward') ]"
+    "# df[ (df['team'] == 'arsenal') & (df['position'] == 'forward') ]\n",
+    "df.query(\"team == 'arsenal' and position == 'forward'\")"
    ]
   },
   {