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How can I filter lines on load in Pandas read_csv function?
...ered by selecting rows by boolean vector df[bool_vec]:
filtered = df[(df['timestamp'] > targettime)]
This is selecting all rows in df (assuming df is any DataFrame, such as the result of a read_csv call, that at least contains a datetime column timestamp) for which the values in the timestamp ...
A non-blocking read on a subprocess.PIPE in Python
I'm using the subprocess module to start a subprocess and connect to its output stream (standard output). I want to be able to execute non-blocking reads on its standard output. Is there a way to make .readline non-blocking or to check if there is data on the stream before I invoke .readline ? I'...
Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
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'console' is undefined error for Internet Explorer
...272.118: debug,error,info,log,warn,dir,dirxml,table,trace,assert,count,markTimeline,profile,profileEnd,time,timeEnd,timeStamp,timeline,timelineEnd,group,groupCollapsed,groupEnd,clear
* Firefox 37.0.1: log,info,warn,error,exception,debug,table,trace,dir,group,groupCollapsed,groupEnd,time,timeEnd,pro...
Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
...ing) tradition in the programming world, see the old standard (POSIX) localtime C function http://linux.die.net/man/3/localtime
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Algorithm to find top 10 search terms
...982). From a list of n items, it find all items that occur more than n / k times, using k - 1 counters. This is a generalization of Boyer and Moore's Majority algorithm (Fischer-Salzberg, 1982), where k is 2. Manku and Motwani's LossyCounting (2002) and Metwally's SpaceSaving (2005) algorithms have ...
Map vs Object in JavaScript
... for an Object.
Use maps over objects when keys are unknown until run time, and when
all keys are the same type and all values are the same type.
Use objects when there is logic that operates on individual elements.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Glob...
Namespace + functions versus static methods on a class
Let's say I have, or am going to write, a set of related functions. Let's say they're math-related. Organizationally, should I:
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Download File to server from URL
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Specifically, it means to read up to 8KB at a time (1024 bytes per KB * 8) since the parameter is in bytes. As long as the line is <= 8KB, it will read the entire line at once.
– Doktor J
Sep 27 '12 at 13:49
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How do I vertically center text with CSS? [duplicate]
I have a <div> element which contains text and I want to align the contents of this <div> vertically center.
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