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Hidden features of Windows batch files
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votes
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pandas GroupBy columns with NaN (missing) values
...ng the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fillna(-1).groupby('b').sum()
Out[12]:
a
b
-1 2
4 1
6 3
That said, this feels pretty awful hack... perhaps there should be an option to include NaN in groupby (see this github i...
What is the most efficient way to loop through dataframes with pandas? [duplicate]
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Nick CrawfordNick Crawford
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Generic deep diff between two objects
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148
I wrote a little class that is doing what you want, you can test it here.
Only thing that is d...
Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)
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342
Okay: This is what I did now and it's solved:
My httpd-vhosts.conf looks like this now:
<V...
How can I use “” in javadoc without formatting?
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edited May 4 '12 at 20:19
Hernán Eche
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How to detect if CMD is running as Administrator/has elevated privileges?
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ADDENDUM: For Windows 8 this will not work; see this excellent answer instead.
Found this sol...
Draw in Canvas by finger, Android
...nt.setStrokeJoin(Paint.Join.MITER);
circlePaint.setStrokeWidth(4f);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB...
Listing all permutations of a string/integer
... it is tagged c #), from http://radio.weblogs.com/0111551/stories/2002/10/14/permutations.html :
Rather lengthy, but I decided to copy it anyway, so the post is not dependent on the original.
The function takes a string of characters, and writes down every possible permutation of that exact string,...
How to handle static content in Spring MVC?
...t of time on this issue, I thought I'd share my solution. Since spring 3.0.4, there is a configuration parameter that is called <mvc:resources/> (more about that on the reference documentation website) which can be used to serve static resources while still using the DispatchServlet on your si...