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Parsing huge logfiles in Node.js - read in line-by-line
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210
I searched for a solution to parse very large files (gbs) line by line using a stream. All the...
Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?
The latest changesets to Ruby 1.9.2 no longer make the current directory . part of your LOAD_PATH . I have a non-trivial number of Rakefiles that assume that . is part of the LOAD_PATH , so this broke them (they reported "no such file to load" for all require statements that based off the proj...
How to understand nil vs. empty vs. blank in Ruby
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answered May 20 '09 at 16:14
Corban BrookCorban Brook
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How do I get the day of the week with Foundation?
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216
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatte...
Python loop that also accesses previous and next values
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102
This should do the trick.
foo = somevalue
previous = next_ = None
l = len(objects)
for index, o...
Using Python 3 in virtualenv
Using virtualenv , I run my projects with the default version of Python (2.7). On one project, I need to use Python 3.4.
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Functional, Declarative, and Imperative Programming [closed]
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263
At the time of writing this, the top voted answers on this page are imprecise and muddled on t...
How to get the last N rows of a pandas DataFrame?
I have pandas dataframe df1 and df2 (df1 is vanila dataframe, df2 is indexed by 'STK_ID' & 'RPT_Date') :
3 Answers
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Changing a specific column name in pandas DataFrame
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362
A one liner does exist:
In [27]: df=df.rename(columns = {'two':'new_name'})
In [28]: df
Out[28...
In a javascript array, how do I get the last 5 elements, excluding the first element?
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362
You can call:
arr.slice(Math.max(arr.length - 5, 1))
If you don't want to exclude the first e...