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How to determine whether a Pandas Column contains a particular value
... 'b', 'c'], dtype=object)
In [22]: 'a' in s.unique()
Out[22]: True
or a python set:
In [23]: set(s)
Out[23]: {'a', 'b', 'c'}
In [24]: 'a' in set(s)
Out[24]: True
As pointed out by @DSM, it may be more efficient (especially if you're just doing this for one value) to just use in directly on th...
Django: Display Choice Value
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How do detect Android Tablets in general. Useragent?
... how I differentiate between tablet and smartphone browsers (this is using Python, but is similarly simple for other programming languages):
if ("Android" in agent):
if ("Mobile" in agent):
deviceType = "Phone"
else:
deviceType = "Tablet"
UPDATED: to reflect use of Chrome on Android, ...
Fast check for NaN in NumPy
...ere exist an accepted answer, I'll like to demonstrate the following (with Python 2.7.2 and Numpy 1.6.0 on Vista):
In []: x= rand(1e5)
In []: %timeit isnan(x.min())
10000 loops, best of 3: 200 us per loop
In []: %timeit isnan(x.sum())
10000 loops, best of 3: 169 us per loop
In []: %timeit isnan(dot...
Create batches in linq
... This is the only fully lazy implementation here. Consistent with the python itertools.GroupBy implementation.
– Eric Roller
Jan 3 '18 at 18:25
1
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In Ruby how do I generate a long string of repeated text?
... Indeed, very weird, look how different and elegant looks in Python: str = "0" * 999999 ;)
– tokland
Nov 16 '16 at 19:38
1
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Plotting with seaborn using the matplotlib object-oriented interface
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Getting parts of a URL (Regex)
...d this regex to identify all parts of the URL (improved version) - code in Python ^((?P<scheme>[^:/?#]+):(?=//))?(//)?(((?P<login>[^:]+)(?::(?P<password>[^@]+)?)?@)?(?P<host>[^@/?#:]*)(?::(?P<port>\d+)?)?)?(?P<path>[^?#]*)(\?(?P<query>[^#]*))?(#(?P<fragm...
Should I use scipy.pi, numpy.pi, or math.pi?
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Import pandas dataframe column as string not int
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