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How can I redirect the output of the “time” command?
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104
you can redirect the time output using,
(time ls) &> file
Because you need to take (...
Draw a perfect circle from user's touch
... System.out.println("circle");
}else{
cD = -1;
System.out.println("unknown");
}
repaint();
}
}
@Override
public void mouseDragged(MouseEvent e) {
Point newPoint = e.getPoint();
if (editing &am...
Is there a way to squash a number of commits non-interactively?
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150
Make sure your working tree is clean, then
git reset --soft HEAD~3
git commit -m 'new commit ...
Implications of foldr vs. foldl (or foldl')
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175
The recursion for foldr f x ys where ys = [y1,y2,...,yk] looks like
f y1 (f y2 (... (f yk x) ...
How to get the last element of an array in Ruby?
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Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1] # => 6
or Array#last method:
a.last # => 5
b.last # => 6
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Multiple aggregations of the same column using pandas GroupBy.agg()
...there a pandas built-in way to apply two different aggregating functions f1, f2 to the same column df["returns"] , without having to call agg() multiple times?
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Get last result in interactive Python shell
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Underscore.
>>> 5+5
10
>>> _
10
>>> _ + 5
15
>>> _
15
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Python using enumerate inside list comprehension
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167
Try this:
[(i, j) for i, j in enumerate(mylist)]
You need to put i,j inside a tuple for the...