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How do you specify the Java compiler version in a pom.xml file?
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Oh, and: don't use Java 1.3.x, current versions are Java 1.7.x or 1.8.x
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dplyr: “Error in n(): function should not be called directly”
...yr first
– hadley
Apr 10 '14 at 23:58
16
As @User1257894 says, use summarize with the package, so...
sqlite alter table add MULTIPLE columns in a single statement
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edited Feb 8 '17 at 14:32
Community♦
111 silver badge
answered May 30 '11 at 6:19
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How do I write a “tab” in Python?
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158
This is the code:
f = open(filename, 'w')
f.write("hello\talex")
The \t inside the string is ...
Bootstrap 3 - Why is row class is wider than its container?
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– Rutwick Gangurde
Jun 26 '15 at 8:54
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What does curly brackets in the `var { … } = …` statements do?
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answered Mar 8 '13 at 10:09
BlenderBlender
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How to format a Java string with leading zero?
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289
In case you have to do it without the help of a library:
("00000000" + "Apple").substring("App...
How do you extract a column from a multi-dimensional array?
...gt;>> import numpy as np
>>> A = np.array([[1,2,3,4],[5,6,7,8]])
>>> A
array([[1, 2, 3, 4],
[5, 6, 7, 8]])
>>> A[:,2] # returns the third columm
array([3, 7])
See also: "numpy.arange" and "reshape" to allocate memory
Example: (Allocating a array with shaping...
{version} wildcard in MVC4 Bundle
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178
The -{version} basically maps to a version regex, or to be precise: (\d+(?:\.\d+){1,3}).
Using *...
Reverse Range in Swift
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185
Update For latest Swift 3 (still works in Swift 4)
You can use the reversed() method on a rang...