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How to remove specific elements in a numpy array
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Suppress Scientific Notation in Numpy When Creating Array From Nested List
...suppress=True), for details see here:
http://pythonquirks.blogspot.fr/2009/10/controlling-printing-in-numpy.html
For SciPy.org numpy documentation, which includes all function parameters (suppress isn't detailed in the above link), see here: https://docs.scipy.org/doc/numpy/reference/generated/nump...
How to find duplicates in 2 columns not 1
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You should set up a composite key between the two fields. This will require a unique stone_id...
How to show SQL queries run in the Rails console?
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edited Jul 25 '18 at 0:36
morhook
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answered May 29 '10 a...
Differences between utf8 and latin1
what is the difference between utf8 and latin1?
2 Answers
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Keep only first n characters in a string?
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edited Apr 12 '14 at 11:37
andrewb
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JavaScript exponents
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a**b // will rise a to the power b
Now it is already implemented in Edge14, Chrome52, and also it is available with traceur or babel.
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Pandas aggregate count distinct
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153
How about either of:
>>> df
date duration user_id
0 2013-04-01 30 ...
Copy table without copying data
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Try:
CREATE TABLE foo SELECT * FROM bar LIMIT 0
Or:
CREATE TABLE foo SELECT * FROM bar WHE...
pandas: multiple conditions while indexing data frame - unexpected behavior
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As you can see, the AND operator drops every row in which at least one
value equals -1. On ...