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R and version control for the solo data analyst
...o. Try Bazaar, it's one of the simplest to learn and use, and if you're on Windows it has a graphical user interface (TortoiseBZR).
Yes, there are additional benefits to version control when working with others, but even on solo projects it makes a lot of sense.
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Quickly reading very large tables as dataframes
....8.7
The examples come from the help page to fread, with the timings on my windows XP Core 2 duo E8400.
library(data.table)
# Demo speedup
n=1e6
DT = data.table( a=sample(1:1000,n,replace=TRUE),
b=sample(1:1000,n,replace=TRUE),
c=rnorm(n),
d=sample(...
Biggest GWT Pitfalls? [closed]
...Browse" button, where you can play with other browsers. For me, working on Windows, this means I can view my work in FireFox, and use FireBug to help tweak and make things better.
IE6. It's amazing how different IE 6 will render things. I've taken the approach of applying a style to the outermost "v...
Does ruby have real multithreading?
...ort for "Yet
Another Ruby VM"). YARV implements Ruby Threads as POSIX or
Windows NT Threads, however, it uses a Global Interpreter
Lock (GIL) to ensure that only one Ruby Thread can actually be
scheduled at any one time.
Like MRI, C Threads can actually run parallel to Ruby Threads.
In the fut...
How do you organize your version control repository?
...m being built in the IDE, if feasible).
Consider nAnt for .NET projects on Windows, or something similar based on your OS, target platform, etc.
Make every project build script reference its external (3rd-party) dependencies from a single local shared "library" directory, with every such binary FULL...
Can we define implicit conversions of enums in c#?
...
Love this, but I ran into a problem: on Windows 7/.NET 4.5 this line TDerived instance = (TDerived)field.GetValue(null); results in instance being null. It seems that the Mono runtime must have a different order of type initialization than the .NET one that allows...
Why would one omit the close tag?
...rogrammer with half a mind can remember to not add extra white-space." On Windows, maybe. On UNIX-like systems, all files end with \n and programs add it for you. EDIT: Aha! As noted below by @mario, PHP eats that, actually.
– Andrea
Oct 17 '14 at 19:51
...
Do on-demand Mac OS X cloud services exist, comparable to Amazon's EC2 on-demand instances? [closed]
Amazon's EC2 service offers a variety of Linux and Windows OS choices, but I haven't found a service offering a similar "rent by the hour" service for a remote Mac OS X virtual machine. Does such a service exist? (iCloud looks to be just a data storage service, rather than a service allowing remot...
parseInt(null, 24) === 23… wait, what?
...ields "null" (not to be confused with toString, which would yield "[object Window]"!).
So, let's consider parseInt("null", 24).
Of course, this isn't a base-24 numeric string in entirety, but "n" is: it's decimal 23.
Now, parsing stops after the decimal 23 is pulled out, because "u" isn't found ...
What are the benefits of learning Vim? [closed]
...'s going to be. Run through the Vim tutor once (vimtutor at a shell, or in Windows run it from the Vim folder in the Start Menu), and you'll already be well on your way to competence, and it's all downhill from there. I was up to the level where I could use Vim at work without taking any noticeable ...