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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...must be converted to a string:
require 'date'
DateTime.strptime("1318996912",'%s')
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How can I use numpy.correlate to do autocorrelation?
... result = numpy.correlate(x, x, mode='full')
return result[result.size/2:]
You will, of course, need error checking to make sure that x is actually a 1-d array. Also, this explanation probably isn't the most mathematically rigorous. I've been throwing around infinities because the definition o...
Most popular screen sizes/resolutions on Android phones [closed]
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You can see the resolutions for those categories in the Table 2, in this section: http://developer.android.com/guide/practices/screens_support.html#testing
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What are “named tuples” in Python?
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Named tuples are basically easy-to-create, lightweight object types. Named tuple instances ca...
Are Javascript arrays sparse?
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edited May 23 '17 at 11:54
Community♦
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answered Oct 2 '09 at 17:21
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Python, compute list difference
... matter, you can simply calculate the set difference:
>>> set([1,2,3,4]) - set([2,5])
set([1, 4, 3])
>>> set([2,5]) - set([1,2,3,4])
set([5])
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Android studio Gradle icon error, Manifest Merger
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edited Jan 27 at 8:24
answered Jul 1 '14 at 9:43
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How do I use the includes method in lodash to check if an object is in the collection?
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The includes (formerly called contains and include) method compares objects by reference (or m...
How can I convert a hex string to a byte array? [duplicate]
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Here's a nice fun LINQ example.
public static byte[] StringToByteArray(string hex) {
return...
Output data from all columns in a dataframe in pandas [duplicate]
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There is too much data to be displayed on the screen, therefore a summary is displayed instead.
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