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How to remove gaps between subplots in matplotlib?

The code below produces gaps between the subplots. How do I remove the gaps between the subplots and make the image a tight grid? ...
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Performance of FOR vs FOREACH in PHP

First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and... ...
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Generating random whole numbers in JavaScript in a specific range?

How can I generate random whole numbers between two specified variables in JavaScript, e.g. x = 4 and y = 8 would output any of 4, 5, 6, 7, 8 ? ...
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Converting a column within pandas dataframe from int to string

I have a dataframe in pandas with mixed int and str data columns. I want to concatenate first the columns within the dataframe. To do that I have to convert an int column to str . I've tried to do as follows: ...
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Twitter's typeahead.js suggestions are not styled (have no border, transparent background, etc.)

I'm using twitter's typeahead.js 0.9.3 and it seems my suggestions are not styled at all. 9 Answers ...
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How do you compare two version Strings in Java?

Is there a standard idiom for comparing version numbers? I can't just use a straight String compareTo because I don't know yet what the maximum number of point releases there will be. I need to compare the versions and have the following hold true: ...
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Command-line Unix ASCII-based charting / plotting tool

Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph. ...
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Difference between declaring variables before or in loop?

I have always wondered if, in general, declaring a throw-away variable before a loop, as opposed to repeatedly inside the loop, makes any (performance) difference? A (quite pointless) example in Java: ...
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Remap values in pandas column with a dict

I have a dictionary which looks like this: di = {1: "A", 2: "B"} 10 Answers 10 ...
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How do I find the time difference between two datetime objects in python?

How do I tell the time difference in minutes between two datetime objects? 15 Answers ...