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How can I map True/False to 1/0 in a Pandas DataFrame?
I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
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How to Flatten a Multidimensional Array?
Is it possible, in PHP, to flatten a (bi/multi)dimensional array without using recursion or references?
29 Answers
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Go Unpacking Array As Arguments
So in Python and Ruby there is the splat operator (*) for unpacking an array as arguments. In Javascript there is the .apply() function. Is there a way of unpacking an array/slice as function arguments in Go? Any resources for this would be great as well!
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How to enable Ad Hoc Distributed Queries
... edited Nov 4 '15 at 8:07
Félix Gagnon-Grenier
6,92299 gold badges4242 silver badges5454 bronze badges
answered Jan 27 '13 at 18:36
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How to determine when Fragment becomes visible in ViewPager
...d and call it from both public methods.
– Johan Franzén
Jun 25 '18 at 8:10
4
setUserVisibleHint ...
How does functools partial do what it does?
...or keyword argument 'a'
another use case: writing distributed code using python's multiprocessing library. A pool of processes is created using the Pool method:
>>> import multiprocessing as MP
>>> # create a process pool:
>>> ppool = MP.Pool()
Pool has a map method,...
Copy to Output Directory copies folder structure but only want to copy files
I have a VS2008 I want to copy certain files from a directory into my /bin/ folder. I have set the files (located in /common/browserhawk/ ) to "Copy to Output Directory". However, it copies the folder structure as well: the files are copied to /bin/common/browserhawk/
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what is reverse() in Django
...yers where URLs are needed: In templates: Using the url
template tag. In Python code: Using the reverse() function. In higher
level code related to handling of URLs of Django model instances: The
get_absolute_url() method.
Eg. in templates (url tag)
<a href="{% url 'news-year-archive' 20...
Why can't I call read() twice on an open file?
...olution for this exercise (code.google.com/intl/de-DE/edu/languages/google-python-class/…). But somehow I didn't thought of storing the string in a variable. D'oh!
– helpermethod
Oct 11 '10 at 17:33
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Numpy: Divide each row by a vector element
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Pythonic way to do this is ...
np.divide(data.T,vector).T
This takes care of reshaping and also the results are in floating point format.
In other answers results are in rounded integer format.
#NOTE: No of columns in bot...