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Best way to merge two maps and sum the values of same key?
...ap[Int,Int] = Map(1 -> 9, 2 -> 20)
scala> val map2 = Map(1 -> 100, 3 -> 300)
map2: scala.collection.immutable.Map[Int,Int] = Map(1 -> 100, 3 -> 300)
scala> map1 |+| map2
res2: scala.collection.immutable.Map[Int,Int] = Map(1 -> 109, 3 -> 300, 2 -> 20)
Specifically...
Plot two histograms on single chart with matplotlib
...(400)]
y = [random.gauss(4,2) for _ in range(400)]
bins = numpy.linspace(-10, 10, 100)
pyplot.hist(x, bins, alpha=0.5, label='x')
pyplot.hist(y, bins, alpha=0.5, label='y')
pyplot.legend(loc='upper right')
pyplot.show()
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JavaScript private methods
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Luke Garrigan
1,8321010 silver badges1919 bronze badges
answered Sep 11 '08 at 1:26
17 of 2617 of 26
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Why use strict and warnings?
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10
These two pragmas can automatically identify bugs in your code.
I always use this in my code:
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Create subdomains on the fly with .htaccess (PHP)
...1" [L,R,NE]
– symcbean
Jun 2 '17 at 10:49
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Make git automatically remove trailing whitespace before committing
....0.
– Karl Richter
Jan 12 '16 at 23:10
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libxml/tree.h no such file or directory
...ent SDK.
– Laurent Etiemble
Apr 16 '10 at 15:53
When i set this "$(SDKROOT)/usr/include/libxml2" to the Header Search ...
Two submit buttons in one form
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105
Also make sure the name of the button has correct name! For example "button-1" would NOT work. May save someone lots of hassle so keep thi...
如何获取IE (控件)的所有链接（包括Frameset, iframe） - 其他 - 清泛IT社...
来源：新浪博客
IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表：
CComPtr<IHTMLElement> body;
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CComPtr<IDispatch> spDispCollection;
body->get_all(&spDispCollection);复制代码所以要获取iframe/frame(frameset) ...
Python - Count elements in list [duplicate]
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answered Nov 9 '10 at 2:41
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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