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Fastest way to replace NAs in a large data.table
...e a large data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible.
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Difference of keywords 'typename' and 'class' in templates?
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edited Jun 26 '17 at 13:28
Hedede
81277 silver badges2323 bronze badges
answered Jan 7 '1...
How to get multiple counts with one SQL query?
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729
You can use a CASE statement with an aggregate function. This is basically the same thing as a ...
Why do I need Transaction in Hibernate for read-only operations?
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answered Nov 24 '12 at 10:50
Stanislav BashkyrtsevStanislav Bashkyrtsev
10.5k66 gold badges3131 silver badges3636 bronze badges
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Check if a folder exist in a directory and create them using C#
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210
This should help:
using System.IO;
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string path = @"C:\MP_Upload";
if(!Directory.Exists(p...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
...e the big differences between TFS and Git for source control when using VS 2013?
MSDN has a very extensive page on all the features and differences between Team Foundation Version Control and Git.
Is the only benefit in my case a local repository (not saying that's insignificant) and IoS devel...
Split (explode) pandas dataframe string entry to separate rows
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22 Answers
22
Active
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update package.json version automatically
...e guys from angular.js.
Usage:
grunt bump
>> Version bumped to 0.0.2
grunt bump:patch
>> Version bumped to 0.0.3
grunt bump:minor
>> Version bumped to 0.1.0
grunt bump
>> Version bumped to 0.1.1
grunt bump:major
>> Version bumped to 1.0.0
If you're using grunt a...
Group By Multiple Columns
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1237
Use an anonymous type.
Eg
group x by new { x.Column1, x.Column2 }
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How to check if running in Cygwin, Mac or Linux?
...ronment you're running in:
pax> uname -a
CYGWIN_NT-5.1 IBM-L3F3936 1.5.25(0.156/4/2) 2008-06-12 19:34 i686 Cygwin
pax> uname -s
CYGWIN_NT-5.1
And, according to the very helpful schot (in the comments), uname -s gives Darwin for OSX and Linux for Linux, while my Cygwin gives CYGWIN_NT-5.1. ...