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how does multiplication differ for NumPy Matrix vs Array classes?
...find it more trouble than it's worth, though.
For arrays (prior to Python 3.5), use dot instead of matrixmultiply.
E.g.
import numpy as np
x = np.arange(9).reshape((3,3))
y = np.arange(3)
print np.dot(x,y)
Or in newer versions of numpy, simply use x.dot(y)
Personally, I find it much more read...
Convert a list to a data frame
I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way to convert this structure into a data frame that has 132 rows and 20 columns of data?
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How do I specify a pointer to an overloaded function?
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139
You can use static_cast<>() to specify which f to use according to the function signature...
Delete all data in SQL Server database
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answered Aug 2 '12 at 3:04
Ryan KirkmanRyan Kirkman
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Can “git pull --all” update all my local branches?
I often have at least 3 remote branches: master, staging and production. I have 3 local branches that track those remote branches.
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Bash script to calculate time elapsed
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answered Jun 4 '13 at 1:03
OmnipotentEntityOmnipotentEntity
14k55 gold badges5656 silver badges8989 bronze badges
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GetType() can lie?
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edited May 28 '13 at 9:37
answered May 28 '13 at 9:19
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What is the Linux equivalent to DOS pause?
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337
read does this:
user@host:~$ read -n1 -r -p "Press any key to continue..." key
[...]
user@hos...
What is the role of the bias in neural networks? [closed]
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1394
+50
I think...
Accessing an array out of bounds gives no error, why?
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376
Welcome to every C/C++ programmer's bestest friend: Undefined Behavior.
There is a lot that ...