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Quickly reading very large tables as dataframes
...are a couple of simple things to try, whether you use read.table or scan.
Set nrows=the number of records in your data (nmax in scan).
Make sure that comment.char="" to turn off interpretation of comments.
Explicitly define the classes of each column using colClasses in read.table.
Setting multi...
Sublime Text 2 keyboard shortcut to open file in specified browser (e.g. Chrome)
... I've also had to change last line in Preferences --> PackageSettings--> view in Browser -- > default settings; to "chrome 64" ( was "firefox"). Then works perfectly with any shortcut ;)
– kolboc
Jul 8 '16 at 12:20
...
Pointers vs. values in parameters and return values
...r, a plain literal, or a useful zero value like bytes.Buffer.
Consider a Reset() method to put an object back in a blank state, like some stdlib types offer. Users who don't care or can't save an allocation don't have to call it.
Consider writing modify-in-place methods and create-from-scratch funct...
ruby inheritance vs mixins
...hip to
endow the class with what might turn out to be just one of several sets of characteristics.
Summing up these rules in one example, here is what you should not do:
module Vehicle
...
class SelfPropelling
...
class Truck < SelfPropelling
include Vehicle
...
Rather, you should ...
How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
...n be assigned to generate these signals (depending on the terminal control settings). The default action for SIGINT is the same sort of process termination as the default action for SIGTERM and the unchangeable action for SIGKILL; the default action for SIGQUIT is also process termination, but addi...
What is normalized UTF-8 all about?
...ny characters that really do not belong, but were used in legacy character sets. Unicode added these to allow text in those character sets to be processed as Unicode, and then be converted back without loss.
Compatibility normalization converts these to the corresponding sequence of "real" character...
Using msbuild to execute a File System Publish Profile
...t as
simple as invoking your project file with a particular target and
setting some properties. You’ll need to do what VS2010 ought to have
done: create a target yourself that performs the half-deploy then
copies the results to the target folder. To edit your project file,
right click on...
Better way to shuffle two numpy arrays in unison
..., and these are the only "random" elements in the shuffle algorithm. By resetting the state, you ensure that the calls to the random number generator will give the same results in the second call to shuffle(), so the whole algorithm will generate the same permutation.
If you don't like this, a dif...
Simple state machine example in C#?
...e> transitions;
public ProcessState CurrentState { get; private set; }
public Process()
{
CurrentState = ProcessState.Inactive;
transitions = new Dictionary<StateTransition, ProcessState>
{
{ new StateTransition(Pr...
What is the tilde (~) in the enum definition?
... @Jimmy: Int32.MinValue is 0x80000000. It has only a single bit set (not the four that F would give you).
– ILMTitan
Apr 26 '13 at 21:14
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