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Speed up the loop operation in R
... over a data.frame object. It simply adds a new column to a data.frame and accumulates something. (simple operation). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtime.
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Abstract functions in Swift Language
...I think fatalError() is better for this one reason
– André Fratelli
Jul 5 '14 at 0:15
6
Also the...
Good Free Alternative To MS Access [closed]
...ngine. It provides a full application development platform, including form and menu designer, client application language and environment (VBA), and report designer. When you take all those things together, MS Access really has no peer.
But for the scope of this question, we're concerned with the r...
What is uintptr_t data type
What is uintptr_t and what can it be used for?
5 Answers
5
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string sanitizer for filename
I'm looking for a php function that will sanitize a string and make it ready to use for a filename. Anyone know of a handy one?
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Handling exceptions from Java ExecutorService tasks
...her
explicitly or via methods such as
submit, these task objects catch and
maintain computational exceptions, and
so they do not cause abrupt
termination, and the internal
exceptions are not passed to this
method.
When you submit a Runnable, it'll get wrapped in a Future.
Your after...
Calling parent class __init__ with multiple inheritance, what's the right way?
...asses.
In the direct call approach, C.__init__ can call both A.__init__ and B.__init__.
When using super(), the classes need to be designed for cooperative multiple inheritance where C calls super, which invokes A's code which will also call super which invokes B's code. See http://rhettinger.w...
How can I preview a merge in git?
I have a git branch (the mainline, for example) and I want to merge in another development branch. Or do I?
11 Answers
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Difference between map and collect in Ruby?
I have Googled this and got patchy / contradictory opinions - is there actually any difference between doing a map and doing a collect on an array in Ruby/Rails?
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Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
... to whether or not there is a real difference between the money datatype and something like decimal(19,4) (which is what money uses internally, I believe).
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