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pandas dataframe columns scaling with sklearn
...in_max_scaler to some of the columns. Ideally, I'd like to do these transformations in place, but haven't figured out a way to do that yet. I've written the following code that works:
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How to get number of entries in a Lua table?
Sounds like a "let me google it for you" question, but somehow I can't find an answer. The Lua # operator only counts entries with integer keys, and so does table.getn :
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NumPy array initialization (fill with identical values)
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NumPy 1.8 introduced np.full(), which is a more direct method than empty() followed by fill() for creating an array filled with a certain value:
>>> np.full((3, 5), 7)
array([[ 7., 7., 7., 7., 7.],
[ 7., 7., 7., 7., 7.],
[ 7., 7., 7., ...
What is the 'instanceof' operator used for in Java?
What is the instanceof operator used for? I've seen stuff like
17 Answers
17
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The multi-part identifier could not be bound
I've seen similar errors on SO, but I don't find a solution for my problem.
I have a SQL query like:
15 Answers
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Are nested try/except blocks in python a good programming practice?
... try:
return object.__getattribute__(item)
except AttributeError:
pass # fallback to dict
try:
return self.dict[item]
except KeyError:
raise AttributeError("The object doesn't have such attribute") from None
PS. has_key() has been deprecated for a long...
How to add a new audio (not mixing) into a video using ffmpeg?
...ace 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 occurs. Quality i...
Automatic vertical scroll bar in WPF TextBlock?
...to appear automatically when that happens, but it didn't. I tried to look for a scroll bar property in the Properties pane, but could not find one.
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Why do my list item bullets overlap floating elements
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+1: Great CSS, I searched like a crazy for a GOOD VERSATILE soltuion and here it is on SO. The only small draw back is that zoom property does not validate CSS, but I tested and on IE7, IE8 is not necessary, so it's probably just for IE6.
– Ma...
How to get the last day of the month?
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I didn't notice this earlier when I was looking at the documentation for the calendar module, but a method called monthrange provides this information:
monthrange(year, month)
Returns weekday of first day of the month and number of days in month, for the specified year and month. ...