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How to select only the first rows for each unique value of a column
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answered Jan 11 '11 at 20:50
gbngbn
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How to fix the aspect ratio in ggplot?
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110
In ggplot the mechanism to preserve the aspect ratio of your plot is to add a coord_fixed() laye...
Transpose/Unzip Function (inverse of zip)?
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802
zip is its own inverse! Provided you use the special * operator.
>>> zip(*[('a', 1), ...
JavaScript “new Array(n)” and “Array.prototype.map” weirdness
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130
It appears that the first example
x = new Array(3);
Creates an array with undefined pointers....
Python call function within class
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answered Apr 11 '11 at 0:24
Jeff MercadoJeff Mercado
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Which HTML5 reset CSS do you use and why? [closed]
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40
Real talk: Despite the markdowns kaikai is right, you only need to reset *padding & margin t...
Python Matplotlib figure title overlaps axes label when using twiny
...tlib, but at least for 1.3.1, this is simply:
plt.title(figure_title, y=1.08)
This also works for plt.suptitle(), but not (yet) for plt.xlabel(), etc.
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How to break out of nested loops?
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Use:
if (condition) {
i = j = 1000;
break;
}
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How to use Elasticsearch with MongoDB?
...to index MongoDB for use in a NodeJS, Express app on a fresh EC2 Ubuntu 14.04 instance.
Make sure everything is up to date.
sudo apt-get update
Install NodeJS.
sudo apt-get install nodejs
sudo apt-get install npm
Install MongoDB - These steps are straight from MongoDB docs.
Choose whatever ve...
Open a project in a new window in IntelliJ after “accidentally” clicking remember decision
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edited Jan 17 '16 at 15:07
answered Feb 27 '14 at 7:37
Pe...