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List of Delphi language features and version in which they were introduced/deprecated
...e to point out that I have honestly and genuinely searched repeatedly and em>x m>haustively via Google for such a thing, and been unable to find one.
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String comparison in Python: is vs. == [duplicate]
...lt-in Python objects (like
strings, lists, dicts, functions,
etc.), if m>x m> is y, then m>x m>==y is also
True.
Not always. NaN is a counterem>x m>ample. But usually, identity (is) implies equality (==). The converse is not true: Two distinct objects can have the same value.
Also, is it generally c...
Em>x m>plicitly calling return in a function or not
...Simon Urbanek from the R core team (I believe) for recommending a user to em>x m>plicitly calling return at the end of a function (his comment was deleted though):
...
How do you sort a dictionary by value?
...ten have to sort a dictionary, consisting of keys & values, by value. For em>x m>ample, I have a hash of words and respective frequencies, that I want to order by frequency.
...
Difference between map, applymap and apply methods in Pandas
Can you tell me when to use these vectorization methods with basic em>x m>amples?
10 Answers
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Cast to int vs floor
...) = -5
(int)(-4.5) = -4
This being said, there is also a difference in em>x m>ecution time. On my system, I've timed that casting is at least 3 times faster than floor.
I have code that needs the floor operation of a limited range of values, including negative numbers. And it needs to be very effici...
Get number of digits with JavaScript
...post suggests, I would like to know how many digits var number has. For em>x m>ample: If number = 15; my function should return 2 . Currently, it looks like this:
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How to store date/time and timestamps in UTC time zone with JPA and Hibernate
...ored or has no effect when used with PostgreSQL
– Alem>x m> R
Apr 29 '19 at 0:26
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show 4 more comments
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pyplot scatter plot marker size
...it increases it by a factor of 4). To see this consider the following two em>x m>amples and the output they produce.
# doubling the width of markers
m>x m> = [0,2,4,6,8,10]
y = [0]*len(m>x m>)
s = [20*4**n for n in range(len(m>x m>))]
plt.scatter(m>x m>,y,s=s)
plt.show()
gives
Notice how the size increases very quickl...