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What are the special dollar sign shell variables?
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1398
$1, $2, $3, ... are the positional parameters.
"$@" is an array-like construct of all positi...
How to remove space between axis & area-plot in ggplot2?
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197
Update: See @divibisan's answer for further possibilities in the latest versions of ggplot2.
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Understanding how recursive functions work
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18 Answers
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How to add a new audio (not mixing) into a video using ffmpeg?
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Replace audio
ffmpeg -i video.mp4 -i audio.wav -map 0:v -map 1:a -c:v copy -shortest output.mp4
The -map option allows you to manually select streams / tracks. See FFmpeg Wiki: Map for more info.
This example uses -c:v copy to stream copy (mux) the video. No re-encoding of the video ...
add a string prefix to each value in a string column using Pandas
...gt;>> df = pd.DataFrame({'col':['a',0]})
>>> df
col
0 a
1 0
>>> df['col'] = 'str' + df['col'].astype(str)
>>> df
col
0 stra
1 str0
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Where Is Machine.Config?
...amework64\[version]\config\machine.config
[version] should be equal to v1.0.3705, v1.1.4322, v2.0.50727 or v4.0.30319.
v3.0 and v3.5 just contain additional assemblies to v2.0.50727 so there should be no config\machine.config. v4.5.x and v4.6.x are stored inside v4.0.30319.
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Python Matplotlib figure title overlaps axes label when using twiny
...ther it is a new feature in later versions of matplotlib, 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 create circle with Bézier curves?
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10 Answers
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Quickest way to convert a base 10 number to any base in .NET?
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12 Answers
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Random date in C#
...ng for some succinct, modern C# code to generate a random date between Jan 1 1995 and the current date.
7 Answers
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