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C# convert int to string with padding zeros?
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edited Apr 8 at 15:00
answered Dec 1 '10 at 14:21
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How to compute the sum and average of elements in an array?
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edited Oct 20 '14 at 15:27
Manolis
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answered Apr 28 '12 at 1:54
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u'\ufeff' in Python string
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answered Jul 28 '13 at 20:56
Mark TolonenMark Tolonen
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Hidden features of Perl?
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54
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The flip-flop operator is useful for skipping the first iteration when loopi...
How to remove the first character of string in PHP?
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edited Oct 31 '15 at 17:40
tleb
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Which maven dependencies to include for spring 3.0?
...o my first project with Spring 3.0 (and maven). I have been using Spring 2.5 (and primer versions) in quite some projects. Nevertheless I am kinda confused, what modules I have to define as dependencies in my pom.xml. I just want to use the core container functions (beans, core, context, el).
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How do I convert a pandas Series or index to a Numpy array? [duplicate]
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357
To get a NumPy array, you should use the values attribute:
In [1]: df = pd.DataFrame({'A': [1,...
How to atomically delete keys matching a pattern using Redis
...r of keys: EVAL "local keys = redis.call('keys', ARGV[1]) \n for i=1,#keys,5000 do \n redis.call('del', unpack(keys, i, math.min(i+4999, #keys))) \n end \n return keys" 0 prefix:*
– sheerun
Aug 19 '14 at 23:12
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Selecting multiple columns in a pandas dataframe
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elyely
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How do I create test and train samples from one dataframe with pandas?
...df[msk]
In [14]: test = df[~msk]
And just to see this has worked:
In [15]: len(test)
Out[15]: 21
In [16]: len(train)
Out[16]: 79
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