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How to check if a value exists in a dictionary (python)
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>>> d = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>>...
Differences between numpy.random and random.random in Python
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3 Answers
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Why can't I initialize non-const static member or static array in class?
...eason a is allowed to be initialized while others are not.
Reference:
C++03 9.4.2 Static data members
§4
If a static data member is of const integral or const enumeration type, its declaration in the class definition can specify a constant-initializer which shall be an integral constant expres...
Maximum Length of Command Line String
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Mofi
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answered Jul 8 '10 at 15:10
sunetossunetos
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How can I get zoom functionality for images?
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13 Answers
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Secondary axis with twinx(): how to add to legend?
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391
You can easily add a second legend by adding the line:
ax2.legend(loc=0)
You'll get this:
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When is an interface with a default method initialized?
...pot) differs from what's specified here. In particular, the Example 12.4.1-3 from this section covers interface initialization. The example as follows:
interface I {
int i = 1, ii = Test.out("ii", 2);
}
interface J extends I {
int j = Test.out("j", 3), jj = Test.out("jj", 4);
}
interface K ...
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
...wo arrays to be evaluated in boolean context (by
calling __bool__ in Python3 or __nonzero__ in Python2).
Your original code
mask = ((r["dt"] >= startdate) & (r["dt"] <= enddate))
selected = r[mask]
looks correct. However, if you do want and, then instead of a and b use (a-b).any() or ...
Highlight label if checkbox is checked
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Eliasz Kubala
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answered Mar 11 '11 at 17:07
Andrew MarshallAn...