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Finding the index of elements based on a condition using python list comprehension
...nstead of a list.
>>> import numpy
>>> a = numpy.array([1, 2, 3, 1, 2, 3])
>>> a
array([1, 2, 3, 1, 2, 3])
>>> numpy.where(a > 2)
(array([2, 5]),)
>>> a > 2
array([False, False, True, False, False, True], dtype=bool)
>>> a[numpy.where(a ...
Getting individual colors from a color map in matplotlib
...lib.cm.get_cmap('Spectral')
rgba = cmap(0.5)
print(rgba) # (0.99807766255210428, 0.99923106502084169, 0.74602077638401709, 1.0)
For values outside of the range [0.0, 1.0] it will return the under and over colour (respectively). This, by default, is the minimum and maximum colour within the range ...
How can building a heap be O(n) time complexity?
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17 Answers
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How do I check if an integer is even or odd? [closed]
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31 Answers
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Eclipse returns error message “Java was started but returned exit code = 1”
...ng after -vmargs is passed directly to the JVM.
-vm
c:/wherever/java/jdk1.6.0_21/jre/bin/server/jvm.dll
-vmargs...
...to your eclipse.ini file, pointing to the JDK you want to use, and check that the required Java version is at least as new as your JDK. This is the path for a Windows system. M...
Is there a way to measure how sorted a list is?
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142
You can simply count the number of inversions in the list.
Inversion
An inversion in a sequenc...
How to test an Internet connection with bash?
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136
Without ping
#!/bin/bash
wget -q --spider http://google.com
if [ $? -eq 0 ]; then
echo ...
How to check with javascript if connection is local host?
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What is the difference between . (dot) and $ (dollar sign)?
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13 Answers
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