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How do I get indices of N maximum values in a NumPy array?
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The simplest I've been able to come up with is:
In [1]: import numpy as np
In [2]: arr = np.array([1, 3, 2, 4, 5])
In [3]: arr.argsort()[-3:][::-1]
Out[3]: array([4, 3, 1])
This involves a complete sort of the array. I wonder if numpy provides a built...
How do you count the number of occurrences of a certain substring in a SQL varchar?
...t has values formatted like a,b,c,d. Is there a way to count the number of commas in that value in T-SQL?
20 Answers
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Is git good with binary files?
...o store them in an efficient way unless you do frequent updates on large uncompressable files.
The problems begin when git needs to generate diffs and merges: git cannot generate meaningful diffs, or merge binary files in any way that could make sense. So all merges, rebases or cherrypicks involvin...
HTML5 Number Input - Always show 2 decimal places
...he change method to trigger it every time the field changes: stackoverflow.com/a/58502237/2056125
– mhellmeier
Oct 22 '19 at 10:30
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how can I Update top 100 records in sql server
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Display Animated GIF
...or it is working but some of the GIF frames are buggy (wrong colors). On a computer it is of course working fine. What gives?
– Benoit Duffez
Feb 10 '12 at 13:26
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Docker - how can I copy a file from an image to a host?
...s from containers to hosts; I have a Dockerfile that fetches dependencies, compiles a build artifact from source, and runs an executable. I also want to copy the build artifact (in my case it's a .zip produced by sbt dist in '../target/`, but I think this question also applies to jars, binaries,...
psql: FATAL: role “postgres” does not exist
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NOTE: If you installed postgres using homebrew, see the comment from @user3402754 below.
Note that the error message does NOT talk about a missing database, it talks about a missing role. Later in the login process it might also stumble over the missing database.
But the first ...
How to access the GET parameters after “?” in Express?
... Mind that req.params is different from req.query! expressjs.com/en/api.html#req.params expressjs.com/en/api.html#req.query @adelriosantiago
– caesarsol
Jan 14 '19 at 11:28
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MongoDB - admin user not authorized
... all this on Linux with MongoDB 2.6.1.
My mongod.conf file is in the old compatibility format
(this is how it came with the installation).
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