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Pandas every nth row
...so GroupBy.first/GroupBy.head, you group on the index:
df.index // 2
# Int64Index([0, 0, 1, 1, 2], dtype='int64')
df.groupby(df.index // 2).first()
# Alternatively,
# df.groupby(df.index // 2).head(1)
a b c
0 x x x
1 x x x
2 x x x
The index is floor-divved by the stride (2, in thi...
Why does Assert.AreEqual(T obj1, Tobj2) fail with identical byte arrays
...yte[0];
byte[] array2 = new byte[0];
Assert.AreEqual(System.Convert.ToBase64String(array1),
System.Convert.ToBase64String(array2));
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AngularJS UI Router - change url without reloading state
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164
+100
Simply ...
Does MySQL included with MAMP not include a config file?
...d parts of a configuration ... for example:
[mysqld]
max_allowed_packet = 64M
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Embed SVG in SVG?
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André Werlang
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answered Aug 10 '14 at 16:28
oabarcaoabarca
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Is there a way to use SVG as content in a pseudo element :before or :after
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dezmandezman
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19
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Code Golf: Collatz Conjecture
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64
votes
Befunge
&>:.:1-|
>3*^ @
|%2: <
v>2/>+
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
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ElasticSearch uses a large 230MB of RAM on 64bit Ubuntu after a fresh install with no data. I really wish Elasticsearch could be run on smaller VPS like PostgreSQL or Redis.
– Xeoncross
Jan 2 '15 at 23:35
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Difference between -pthread and -lpthread while compiling
...forms that the GCC docs don't explicitly list it for (such as i386 and x86-64) - you should use it when available.
Also note that other similar options have been used by GCC, such as -pthreads (listed as a synonym for -pthread on Solaris 2) and -mthread (for MinGW-specific thread support on i386 an...
Specifically, what's dangerous about casting the result of malloc?
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unwindunwind
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