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Differences between Oracle JDK and OpenJDK
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edited Oct 14 '18 at 3:08
Willi Mentzel
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ans...
Getting individual colors from a color map in matplotlib
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import matplotlib
cmap = matplotlib.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 an...
How to generate random SHA1 hash to use as ID in node.js?
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edited May 23 '17 at 12:10
Community♦
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answered Feb 23 '12 at 6:28
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pandas: How do I split text in a column into multiple rows?
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207
+50
This spl...
What ports does RabbitMQ use?
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edited Sep 19 '14 at 18:00
Eric Leschinski
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How to drop a list of rows from Pandas dataframe?
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401
Use DataFrame.drop and pass it a Series of index labels:
In [65]: df
Out[65]:
one two...
Why are elementwise additions much faster in separate loops than in a combined loop?
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10 Answers
10
Active
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Shell equality operators (=, ==, -eq)
... guaranteed to work.
$ a=foo
$ [ "$a" = foo ]; echo "$?" # POSIX sh
0
$ [ "$a" == foo ]; echo "$?" # bash specific
0
$ [ "$a" -eq foo ]; echo "$?" # wrong
-bash: [: foo: integer expression expected
2
(Side note: Quote those variable expansions! Do not leave out the double quotes ab...
How do I find out if first character of a string is a number?
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260
Character.isDigit(string.charAt(0))
Note that this will allow any Unicode digit, not just 0-9....
How to output only captured groups with sed?
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answered May 6 '10 at 2:39
Paused until further notice.Paused until further notice.
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