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Python Pandas: Get index of rows which column matches certain value
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473
df.iloc[i] returns the ith row of df. i does not refer to the index label, i is a 0-based inde...
Converting XML to JSON using Python?
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edited Sep 7 '14 at 21:36
answered Oct 10 '08 at 14:34
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CALayer with transparent hole in it
....cgColor
fillLayer.opacity = 0.5
view.layer.addSublayer(fillLayer)
Swift 4.2 & 5:
let radius: CGFloat = myRect.size.width
let path = UIBezierPath(roundedRect: CGRect(x: 0, y: 0, width: self.view.bounds.size.width, height: self.view.bounds.size.height), cornerRadius: 0)
let circlePath = UIBezi...
Are duplicate keys allowed in the definition of binary search trees?
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answered Nov 19 '08 at 4:08
ChrisChris
4,3842020 silver badges1616 bronze badges
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class
...elf
def value_of obj
obj.to_s
end
end
end
String.value_of 42 # => "42"
This can also be written as a shorthand:
class String
def self.value_of obj
obj.to_s
end
end
Or even shorter:
def String.value_of obj
obj.to_s
end
When inside a function definition, self ...
How to var_dump variables in twig templates?
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14 Answers
14
Active
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Using socket.io in Express 4 and express-generator's /bin/www
... deal: I'm trying to use socket.io in an express project. After Express Js 4 was lauched, i've updated my express-generator and now the app initial functions goes into ./bin/www file, including those vars (www file contents: http://jsfiddle.net/avMa5/ )
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Changing the “tick frequency” on x or y axis in matplotlib?
...umpy as np
import matplotlib.pyplot as plt
x = [0,5,9,10,15]
y = [0,1,2,3,4]
plt.plot(x,y)
plt.xticks(np.arange(min(x), max(x)+1, 1.0))
plt.show()
(np.arange was used rather than Python's range function just in case min(x) and max(x) are floats instead of ints.)
The plt.plot (or ax.plot) fu...
Why use a prime number in hashCode?
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104
Because you want the number you are multiplying by and the number of buckets you are inserting i...