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Convert UNIX epoch to Date object
...s integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion?
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Select Row number in postgres
...guaranteed.
– AlexM
Jun 14 '16 at 4:30
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@pumbo Appears row_number() returns "the row number of t...
Why doesn't c++ have &&= or ||= for booleans?
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How can you programmatically tell an HTML SELECT to drop down (for example, due to mouseover)?
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edited Feb 3 '14 at 21:02
Robert Harvey
164k4141 gold badges308308 silver badges467467 bronze badges
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Django - what is the difference between render(), render_to_response() and direct_to_template()?
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render() is a brand spanking new shortcut for render_to_response in 1.3 that will automatically use RequestContext that I will most definitely be using from now on.
2020 EDIT: It should be noted that render_to_response() was removed in Django 3.0
https://docs.djangoproject.com/en/1.8/topics...
How can I convert a zero-terminated byte array to string?
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Finding the max/min value in an array of primitives using Java
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173
Using Commons Lang (to convert) + Collections (to min/max)
import java.util.Arrays;
import java...
ruby 1.9: invalid byte sequence in UTF-8
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In Ruby 1.9.3 it is possible to use String.encode to "ignore" the invalid UTF-8 sequences. Here is a snippet that will work both in 1.8 (iconv) and 1.9 (String#encode) :
require 'iconv' unless String.method_defined?(:encode)
if String.m...
Proper package naming for testing with the Go language
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The fundamental difference between the three strategies you've listed is whether or not the tes...
Numpy first occurrence of value greater than existing value
...nce are returned.") and doesn't save another list.
In [2]: N = 10000
In [3]: aa = np.arange(-N,N)
In [4]: timeit np.argmax(aa>N/2)
100000 loops, best of 3: 52.3 us per loop
In [5]: timeit np.where(aa>N/2)[0][0]
10000 loops, best of 3: 141 us per loop
In [6]: timeit np.nonzero(aa>N/2)[0...