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E731 do not assign a lambda em>x m>pression, use a def
I get this pep8 warning whenever I use lambda em>x m>pressions. Are lambda em>x m>pressions not recommended? If not why?
4 Answers
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Select a Dictionary with LINQ
I have used the "select" keyword and em>x m>tension method to return an IEnumerable<T> with LINQ, but I have a need to return a generic Dictionary<T1, T2> and can't figure it out. The em>x m>ample I learned this from used something in a form similar to the following:
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Append a NumPy array to a NumPy array
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Hi when i run this i get this np.concatenate((a,b),am>x m>is=1) Output: array([1, 2, 3, 2, 3, 4]) But what I looking for is numpy 2d array??
– frazman
Mar 19 '12 at 18:05
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How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
...lotlib. In your case:
import matplotlib.pyplot as plt
import numpy as np
m>x m> = np.arange(5)
y = np.em>x m>p(m>x m>)
fig1, am>x m>1 = plt.subplots()
am>x m>1.plot(m>x m>, y)
am>x m>1.set_title("Am>x m>is 1 title")
am>x m>1.set_m>x m>label("m>X m>-label for am>x m>is 1")
z = np.sin(m>x m>)
fig2, (am>x m>2, am>x m>3) = plt.subplots(nrows=2, ncols=1) # two am>x m>es on figure...
push_back vs emplace_back
...s strictly equivalent to push_back(Type&& _Val).
But the real C++0m>x m> form of emplace_back is really useful: void emplace_back(Args&&...);
Instead of taking a value_type it takes a variadic list of arguments, so that means that you can now perfectly forward the arguments and construc...
How do I initialize the base (super) class?
...at you are using, and invoke their base class through super(), e.g.
class m>X m>(object):
def __init__(self, m>x m>):
pass
def doit(self, bar):
pass
class Y(m>X m>):
def __init__(self):
super(Y, self).__init__(123)
def doit(self, foo):
return super(Y, self).doit(foo)
Because python kn...
What are all the uses of an underscore in Scala?
... you name all the uses of “_”? ". Can you? If yes, please do so here. Em>x m>planatory em>x m>amples are appreciated.
7 Answers
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Map function in MATLAB?
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The short answer: the built-in function arrayfun does em>x m>actly what your map function does for numeric arrays:
>> y = arrayfun(@(m>x m>) m>x m>^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: c...
Practical em>x m>ample where Tuple can be used in .Net 4.0?
...r Func... you can make this types yourself, but it's convenient that they em>x m>ist in the framework.
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Algorithm to detect intersection of two rectangles?
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The standard method would be to do the separating am>x m>is test (do a google search on that).
In short:
Two objects don't intersect if you can find a line that separates the two objects. e.g. the objects / all points of an object are on different sides of the line.
The fun t...