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How to add an extra column to a NumPy array
...p.random.rand(N,N)
b = np.zeros((N,N+1))
b[:,:-1] = a
And timings:
In [23]: N = 10
In [24]: a = np.random.rand(N,N)
In [25]: %timeit b = np.hstack((a,np.zeros((a.shape[0],1))))
10000 loops, best of 3: 19.6 us per loop
In [27]: %timeit b = np.zeros((a.shape[0],a.shape[1]+1)); b[:,:-1] = a
10000...
How to show and update echo on same line
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203
Well I did not read correctly the man echo page for this.
echo had 2 options that could do this...
How to base64 encode image in linux bash / shell
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answered Jun 4 '13 at 13:09
chepnerchepner
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Git fast forward VS no fast forward merge
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312
The --no-ff option is useful when you want to have a clear notion of your feature branch. So e...
How to create a loop in bash that is waiting for a webserver to respond?
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edited Apr 18 '14 at 15:43
Serge Stroobandt
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ans...
Fastest hash for non-cryptographic uses?
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13 Answers
13
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Is there a ceiling equivalent of // operator in Python?
I found out about the // operator in Python which in Python 3 does division with floor.
7 Answers
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list_display - boolean icons for methods
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235
This is documented, although it's a bit hard to find - go a couple of screens down from here, a...