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Is it possible to use argsort in descending order?
...ve that the big elements are coming last in the argsort. So, you can read from the tail of the argsort to find the n highest elements:
avgDists.argsort()[::-1][:n]
Both methods are O(n log n) in time complexity, because the argsort call is the dominant term here. But the second approach has a ...
Convert SQLITE SQL dump file to POSTGRESQL
...le.sql
If you want the id column to "auto increment" then change its type from "int" to "serial" in the table creation line. PostgreSQL will then attach a sequence to that column so that INSERTs with NULL ids will be automatically assigned the next available value. PostgreSQL will also not recogniz...
Best architectural approaches for building iOS networking applications (REST clients)
...d a "bad" architecture.
You said: collect the most interesting approaches from experienced iOS developers, I don't think that my approach is the most interesting or correct, but I've used it in several projects and satisfied with it. It is a hybrid approach of the ones you have mentioned above, and...
Getting the first character of a string with $str[0]
...
As of today (10th May'18), a quote from the liked PHP docs: Note: Strings may also be accessed using braces, as in $str{42}, for the same purpose. Seems like this syntax is going to stay for a while.
– Fr0zenFyr
May...
Difference of Maven JAXB plugins
...aven-jaxb2-plugin
versus
com.sun.tools.xjc.maven2:maven-jaxb-plugin,
from my point of view it's definitely
the first one
(http://maven-jaxb2-plugin.java.net/).
This plugin has much more features
than
com.sun.tools.xjc.maven2:maven-jaxb-plugin,
the development is active. Finally,...
In which language are the Java compiler and JVM written?
...as developed by Sun Microsystems and was written in C using some libraries from C++. Today, the Java compiler is written in Java, while the JRE is written in C.
We can imagine how the Java compiler was written in Java like this:
The Java compiler is written as a Java program and then compiled wit...
Why does this Java code compile?
...se restrictions are intended to prevent code like
int j = i;
int i = j;
from compiling. The Java spec says "the restrictions above are designed to catch, at compile time, circular or otherwise malformed initializations."
What do these rules actually boil down to?
In short, the rules basically s...
SVN undo delete before commit
If you delete a directory from an SVN working copy, but haven't committed yet, it's not obvious how to get it back. Google even suggests "svn undo delete before commit" as a common query when you type "svn undo d", but the search results are unhelpful.
...
How to declare global variables in Android?
...class and make it available for your entire application. You can access it from any context using the Context.getApplicationContext() method (Activity also provides a method getApplication() which has the exact same effect). Following is an extremely simplified example, with caveats to follow:
clas...
Matplotlib 2 Subplots, 1 Colorbar
...ton's code using the axparameter of figure.colorbar() with a list of axes.
From the documentation:
ax
None | parent axes object(s) from which space for a new colorbar axes will be stolen. If a list of axes is given they will all be resized to make room for the colorbar axes.
imp...