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Append a NumPy array to a NumPy array
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234
In [1]: import numpy as np
In [2]: a = np.array([[1, 2, 3], [4, 5, 6]])
In [3]: b = np.array(...
How to drop columns by name in a data frame
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389
You should use either indexing or the subset function. For example :
R> df <- data.fram...
Image Segmentation using Mean Shift explained
...hood and whose value is within a distance d.
The Mean Shift takes usually 3 inputs:
A distance function for measuring distances between pixels. Usually the Euclidean distance, but any other well defined distance function could be used. The Manhattan
Distance is another useful choice sometimes.
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How to use pip with Python 3.x alongside Python 2.x
I installed Python 3.x (besides Python 2.x on Ubuntu) and slowly started to pair modules I use in Python 2.x.
10 Answers
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How to update gradle in android studio?
...Official links
Version Compatibility
Migrate to Android Plugin for Gradle 3.0.0
Find out the latest version of Gradle
Info about the Gradle Wrapper
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Rspec: “array.should == another_array” but without concern for order
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answered Jun 5 '10 at 3:08
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Why are these numbers not equal?
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359
General (language agnostic) reason
Since not all numbers can be represented exactly in IEEE f...
Grouping functions (tapply, by, aggregate) and the *apply family
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+100
R has ...
Selecting data frame rows based on partial string match in a column
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3 Answers
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
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43
There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we i...