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Rank items in an array using Python/NumPy, without sorting array twice
... mind the dependency on scipy, you can use scipy.stats.rankdata:
In [22]: from scipy.stats import rankdata
In [23]: a = [4, 2, 7, 1]
In [24]: rankdata(a)
Out[24]: array([ 3., 2., 4., 1.])
In [25]: (rankdata(a) - 1).astype(int)
Out[25]: array([2, 1, 3, 0])
A nice feature of rankdata is that ...
Should I impose a maximum length on passwords?
...imposing a minimum length on passwords makes a lot of sense (to save users from themselves), but my bank has a requirement that passwords are between 6 and 8 characters long, and I started wondering...
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Drawing Isometric game worlds
...mend this problem, the inner for-loop's order must be reversed -- starting from the highest value, and rendering toward the lower value:
tile_map[][] = [[...],...]
for (i = 0; i < tile_map.size; i++):
for (j = tile_map[i].size; j >= 0; j--): // Changed loop condition here.
draw(...
How to get the current directory of the cmdlet being executed
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Thanks, this is a great method to find the full path from relative paths. E.g. (Get-Item -Path $myRelativePath -Verbose).FullName
– dlux
May 6 '14 at 3:51
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What is boxing and unboxing and what are the trade offs?
... which is ever so convenient. Primitives (in Java at least) don't descend from Object, can't have fields, can't have methods, and just generally behave very differently from other types of values. On the other hand, working with them can be very fast and space efficient. Thus the trade off.
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Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
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This is undefined behavior from the C++11 draft standard section 6.6.3 The return statement paragraph 2 which says:
[...] Flowing off the end of a function is equivalent to a return with no value; this results in undefined behavior in a value-retur...
Shell script while read line loop stops after the first line
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The problem is that do_work.sh runs ssh commands and by default ssh reads from stdin which is your input file. As a result, you only see the first line processed, because ssh consumes the rest of the file and your while loop terminates.
To prevent this, pass the -n option to your ssh command to m...
Exposing a port on a live Docker container
...not do this via Docker, but you can access the container's un-exposed port from the host machine.
If you have a container with something running on its port 8000, you can run
wget http://container_ip:8000
To get the container's IP address, run the 2 commands:
docker ps
docker inspect container_name...
Handle Guzzle exception and get HTTP body
I would like to handle errors from Guzzle when the server returns 4xx and 5xx status codes. I make a request like this:
5 A...
Calculating days between two dates with Java
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UPDATE: The original answer from 2013 is now outdated because some of the classes have been replaced. The new way of doing this is using the new java.time classes.
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd MM yyyy");
String inputString1 =...