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Numpy: Divide each row by a vector element
...combined with broadcasting:
In [6]: data - vector[:,None]
Out[6]:
array([[0, 0, 0],
[0, 0, 0],
[0, 0, 0]])
In [7]: data / vector[:,None]
Out[7]:
array([[1, 1, 1],
[1, 1, 1],
[1, 1, 1]])
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What does the “|” (single pipe) do in JavaScript?
Why does 0.5 | 0 return zero, but any integer (including negative) returns the input integer? What does the single pipe ("|") do?
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css transform, jagged edges in chrome
...2/… ?
– abernier
Feb 11 '12 at 12:06
5
This works in Chrome, but it makes them jagged again in ...
Current time formatting with Javascript
...ar() - Returns the 4-digit year
getMonth() - Returns a zero-based integer (0-11) representing the month of the year.
getDate() - Returns the day of the month (1-31).
getDay() - Returns the day of the week (0-6). 0 is Sunday, 6 is Saturday.
getHours() - Returns the hour of the day (0-23).
getMinutes...
What does axis in pandas mean?
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It specifies the axis along which the means are computed. By default axis=0. This is consistent with the numpy.mean usage when axis is specified explicitly (in numpy.mean, axis==None by default, which computes the mean value over the flattened array) , in which axis=0 along the rows (namely, index ...
Drop columns whose name contains a specific string from pandas DataFrame
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10 Answers
10
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What's the simplest way to test whether a number is a power of 2 in C++?
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190
(n & (n - 1)) == 0 is best. However, note that it will incorrectly return true for n=0, so i...
Android Left to Right slide animation
...ndroid:shareInterpolator="false">
<translate android:fromXDelta="-100%" android:toXDelta="0%"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="700"/>
</set>
This is for right to left animation:
<set xmlns:android="http://schemas.android...
Specifying rails version to use when creating a new application
I have two versions of rails (2.1.0 and 2.2.2) installed in my computer.
7 Answers
7
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Memoization in Haskell?
...efficiently the following function in Haskell, for large numbers (n > 108)
8 Answers
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