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Is it possible to use argsort in descending order?
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If you negate an array, the lowest elements become the highest elements and vice-versa. Therefore, the indices of the n highest elements are:
(-avgDists).argsort()[:n]
Another way to reason about this, as mentioned in the comments, is to observe that the big elements are coming last in the ar...
How to replace ${} placeholders in a text file?
..., the file having variables like ${dbName} interspersed. What is the command line utility to replace these instances and dump the output to standard output?
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Using reCAPTCHA on localhost
I'm developing a website using PHP and I want to make a human verification in one of the sessions. For the development, I'm initially running the system locally and when it is ready, I'm gonna make put it on in a certain domain.
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How do you convert a byte array to a hexadecimal string, and vice versa?
How can you convert a byte array to a hexadecimal string, and vice versa?
45 Answers
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Plot two graphs in same plot in R
I would like to plot y1 and y2 in the same plot.
16 Answers
16
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Can you break from a Groovy “each” closure?
...ndition.
Alternatively, you could use a "find" closure instead of an each and return true when you would have done a break.
This example will abort before processing the whole list:
def a = [1, 2, 3, 4, 5, 6, 7]
a.find {
if (it > 5) return true // break
println it // do the stuff th...
Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
I guess I'm not clear on how to do "and" tests. I wanted to make sure an argument existed which was working well with [ -e $VAR ] , but it turns out that was also evaluating as true on an empty string; which I do not want.
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How to find Unused Amazon EC2 Security groups
...'m try to find a way to determine orphan security groups so I can clean up and get rid of them. Does anyone know of a way to discover unused security groups.
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Dealing with “Xerces hell” in Java/Maven?
... users are "touched" by this problem at some point. Unfortunately, understanding the problem requires a bit of knowledge about the history of Xerces...
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How do I undo the most recent local commits in Git?
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Undo a commit and redo
$ git commit -m "Something terribly misguided" # (1)
$ git reset HEAD~ # (2)
<< edit files as necessary >> # (3)
$ git add...