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How can I map True/False to 1/0 in a Pandas DataFrame?
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284
A succinct way to convert a single column of boolean values to a column of integers 1 or 0:
df[...
Loop through properties in JavaScript object with Lodash
...e accepted answer (_.forOwn()) should be https://stackoverflow.com/a/21311045/528262
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Singleton by Jon Skeet clarification
...epends on what laziness guarantees you need. You should be aware that .NET 4 changes the actual type initialization semantics somewhat (still within the spec, but lazier than before).
Do you really need this pattern though? Are you sure you can't get away with:
public sealed class Singleton
{
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
...e?(5) #=> true
(1...5).include?(5) #=> false
(1..4).include?(4.1) #=> false
(1...5).include?(4.1) #=> true
(1..4).to_a == (1...5).to_a #=> true
(1..4) == (1...5) #=> false
†The docs used to not include this, instead requiring read...
How to change a DIV padding without affecting the width/height ?
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answered Feb 8 '10 at 23:14
Juraj BlahunkaJuraj Blahunka
14.1k66 gold badges3232 silver badges5252 bronze badges
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AngularJS - difference between pristine/dirty and touched/untouched
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4 Answers
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How do I remove a project configuration in Visual Studio 2008?
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edited Oct 11 '14 at 18:18
Matthias
3,5531010 gold badges3333 silver badges7171 bronze badges
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Why isn't there a Guid.IsNullOrEmpty() method
...eople.
– Jon Skeet
Mar 23 '12 at 10:42
2
@goths You can make a general extension method for all v...
How can I create a correlation matrix in R?
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104
An example,
d &lt- data.frame(x1=rnorm(10),
x2=rnorm(10),
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make arrayList.toArray() return more specific types
...bject[], it cannot instantiate it on its own.
– user1499731
Apr 18 '13 at 20:23
What if instead of String we want to u...