mathdatech/python_reference
1
0
Fork 0
mirror of https://github.com/rasbt/python_reference.git synced 2025-01-18 07:17:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

df.query() as an alternative to chained conditions

Browse Source
This commit is contained in:
warwick 2019-02-17 21:44:22 +09:00
parent b0bd985d7e
commit 25981b6312
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tutorials/things_in_pandas.ipynb
View File

@ -2662,7 +2662,8 @@
"source": [ "source": [
"# Selecting only those players that either playing for Arsenal or Chelsea\n", "# Selecting only those players that either playing for Arsenal or Chelsea\n",
"\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": [ "source": [
"# Selecting forwards from Arsenal only\n", "# Selecting forwards from Arsenal only\n",
"\n", "\n",
"df[ (df['team'] == 'arsenal') & (df['position'] == 'forward') ]" "# df[ (df['team'] == 'arsenal') & (df['position'] == 'forward') ]\n",
"df.query(\"team == 'arsenal' and position == 'forward'\")"
] ]
}, },
{ {