faster index removal from another dataframe

marksibrahim · Sep 19, 2018 · 0073fba · 0073fba
1 parent cf91ae2
commit 0073fba
Showing 1 changed file with 7 additions and 9 deletions.
diff --git a/modern-pandas/modern-pandas.ipynb b/modern-pandas/modern-pandas.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -14,7 +14,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -23,7 +23,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -65,7 +65,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -608,7 +608,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -719,7 +719,7 @@
        "[2395 rows x 14 columns]"
       ]
      },
-     "execution_count": 7,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -728,9 +728,7 @@
     "bad_flights = flights[flights[\"cancelled\"] == 0]\n",
     "\n",
     "# use index.difference method\n",
-    "good_indices = flights.index.difference(bad_flights.index)\n",
-    "\n",
-    "flights.loc[good_indices]"
+    "flights.drop(bad_flights.index, axis=0)"
    ]
   },
   {