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What is the most efficient way to create a dictionary of two pandas Dataframe columns?
..._dict()[VALUE]
Proof on 50,000 rows:
df = pd.DataFrame(np.random.randint(32, 120, 100000).reshape(50000,2),columns=list('AB'))
df['A'] = df['A'].apply(chr)
%timeit dict(zip(df.A,df.B))
%timeit pd.Series(df.A.values,index=df.B).to_dict()
%timeit df.set_index('A').to_dict()['B']
Output:
100 loop...
Rendering a template variable as HTML
... Yuji 'Tomita' TomitaYuji 'Tomita' Tomita
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How can you display the Maven dependency tree for the *plugins* in your project?
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answered Aug 16 '11 at 14:32
khmarbaisekhmarbaise
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Render a variable as HTML in EJS
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Akash Kumar Verma
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answered Apr 26 '12 at 9:09
Jakub ObozaJakub Oboza
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'const string' vs. 'static readonly string' in C#
...pocrite. ;)
– LukeH
Nov 18 '12 at 1:32
What about performance in case of strings in particular? Will each const usage ...
How do I parse a YAML file in Ruby?
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edited Nov 7 '15 at 5:32
Nathan
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answered O...
View entire check in history TFS
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answered Oct 13 '10 at 0:32
softvedasoftveda
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How to find Array length inside the Handlebar templates?
...s. :)
– Perry Tew
Jun 18 '13 at 17:32
8
This doesn't work at least for Mandrills flavor of handl...
Getting the encoding of a Postgres database
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32
If you want to get database encodings:
psql -U postgres -h somehost --list
You'll see somet...
What is the difference between MySQL Server and MySQL Client
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answered Nov 28 '15 at 6:32
Sunny S.MSunny S.M
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