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R object identification
...t(d=1:26, e=letters))
data(cars)
obj <- lm(dist ~ speed, data=cars)
..etc.
If obj is an S3 or S4 object, you can also try methods or showMethods, showClass, etc. Patrick Burns' R Inferno has a pretty good section on this (sec #7).
EDIT: Dirk and Hadley mention str(obj) in their answers. It ...
Git Server Like GitHub? [closed]
... setting proper local-server backup strategies, administrating the server, etc.
– atmosx
Jun 25 '15 at 5:24
Can't you ...
How to do ssh with a timeout in a script?
...h some sort of configuration management tool like puppet/ansible/chef/salt/etc.
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How to initialize log4j properly?
...sed to initialize itself, which loggers / appenders got configured and how etc.
The configuration file can be a java properties file or an xml file. Here is a sample of the properties file format taken from the log4j intro documentation page:
log4j.rootLogger=debug, stdout, R
log4j.appender.stdo...
How do I export UIImage array as a movie?
...buffer = NULL;
// This was just our utility class to get screen sizes etc.
ATHSingleton *singleton = [ATHSingleton singletons];
int i = 0;
while (1)
{
// Check if the writer is ready for more data, if not, just wait
if(writerInput.readyForMoreMediaData){
...
What are some (concrete) use-cases for metaclasses?
...I found that I was able to increment the figure count, call draw manually, etc, but I needed to do these before and after every plotting call. So to create both an interactive plotting wrapper and an offscreen plotting wrapper, I found it was more efficient to do this via metaclasses, wrapping the ...
How to convert integer timestamp to Python datetime
...isor (being representation of 1000 as float) or with float(1000) (or 1000. etc.), the division becomes true division. Python 2.x returns float when dividing int by float, float by int, float by float etc. And when there is some fractional part in the timestamp passed to fromtimestamp() method, this ...
What is difference between Errors and Exceptions? [duplicate]
... programmatically. Examples include FileNotFoundException, ParseException, etc. A programmer is expected to check for these exceptions by using the try-catch block or throw it back to the caller
On the other hand we have unchecked exceptions. These are those exceptions that might not happen if eve...
Creating an API for mobile applications - Authentication and Authorization
... purpose will be for consumption by mobile apps (iPhone, Android, Symbian, etc). I've been looking into different mechanisms for authentication and authorization for web-based APIs (by studying other implementations). I've got my head wrapped around most of the fundamental concepts but am still lo...
Get size of folder or file
... modification, security exceptions, works with both files and directories, etc. It's too bad Files doesn't support it directly!
– Aleksandr Dubinsky
Oct 28 '15 at 10:39
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