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How to group dataframe rows into list in pandas groupby?
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442
You can do this using groupby to group on the column of interest and then apply list to every ...
How to configure slf4j-simple
api 1.7 and slf4j-simple as implementation. I just can't find how to configure the logging level with this combination.
4 ...
Android destroying activities, killing processes
... assume I have an application with 5 activities on current activity stack (4 are stopped and 1 is resumed), there is no service connected. I press HOME button so that all of my activities are stopped.
I start some other memory consuming application and overall device memory is starting to be low. An...
Why are these numbers not equal?
...About Floating-point Arithmetic," ACM Computing Surveys 23, 1 (1991-03), 5-48 doi>10.1145/103162.103163 (revision also available)
The Floating-Point Guide - What Every Programmer Should Know About Floating-Point Arithmetic
0.30000000000000004.com compares floating point arithmetic across programm...
Spring DAO vs Spring ORM vs Spring JDBC
... rs -> new Person(rs.getString(1), rs.getString(2)),
134561351656L);
Spring-JDBC also provides a JdbcDaoSupport, that you can extend to develop your DAO. It basically defines 2 properties: a DataSource and a JdbcTemplate that both can be used to implement the DAO methods. It al...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
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499
NOTE: All algorithms below are in C, but should be portable to your language of choice (just d...
Coroutine vs Continuation vs Generator
...nuation).
def foo(x, y, cc):
cc(max(x, y))
biggest = callcc(foo, [23, 42])
print biggest
What would happen is that callcc() would in turn call foo() with the current continuation (cc), that is, a reference to the point in the program at which callcc() was called. When foo() calls the current ...
How to specify function types for void (not Void) methods in Java8?
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What's the difference between returning void and returning a Task?
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