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How to add a new row to an empty numpy array
...ray([[1,2,3]]), 0)
.....:
100 loops, best of 3: 18.5 ms per loop
In [214]: np.allclose(a, l)
Out[214]: True
The numpythonic way to do it depends on your application, but it would be more like:
In [220]: timeit n = np.arange(1,3001).reshape(1000,3)
100000 loops, best of 3: 5.93 µs per loop
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Integrate ZXing in Android Studio
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answered May 21 '14 at 15:52
Langusten GustelLangusten Gustel
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Open files in 'rt' and 'wt' modes
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answered Apr 14 '14 at 2:36
devnulldevnull
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Jasmine.js comparing arrays
...6, 6, 3, 1, 2 ].
– morpheus
Feb 21 '14 at 23:16
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Why is it slower to iterate over a small string than a small list?
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answered May 26 '14 at 6:37
VeedracVeedrac
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How to return a part of an array in Ruby?
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edited May 14 '19 at 12:24
dlouzan
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answered Mar 29 '09...
validation custom message for rails 3
...' to presence.
– harm
Apr 12 '13 at 14:06
1
@NotDan, link broken.
– stevens...
Selecting data frame rows based on partial string match in a column
... mpg cyl disp hp drat wt qsec vs am gear carb
# Merc 240D 24.4 4 146.7 62 3.69 3.19 20.0 1 0 4 2
# Merc 230 22.8 4 140.8 95 3.92 3.15 22.9 1 0 4 2
# Merc 280 19.2 6 167.6 123 3.92 3.44 18.3 1 0 4 4
# Merc 280C 17.8 6 167.6 123 3.92 3.44 18.9 1 0 ...
NameError: global name 'unicode' is not defined - in Python 3
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answered Nov 9 '13 at 14:52
Martijn Pieters♦Martijn Pieters
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Selecting with complex criteria from pandas.DataFrame
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edited Sep 12 '18 at 14:40
jeffhale
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