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What's the equivalent of use-commit-times for git?
... simple --with-timestamps option for git checkout and friends (clone, pull etc), at the user's discretion.
Both Bazaar and Mercurial stores metadata. Users can apply them or not when checking out. But in git, since original timestamps are not even available in the repo, there is no such option.
So...
Pass a data.frame column name to a function
...1(df, "B")
fun1(df, c("B","A"))
There's no need to use substitute, eval, etc.
You can even pass the desired function as a parameter:
fun1 <- function(x, column, fn) {
fn(x[,column])
}
fun1(df, "B", max)
Alternatively, using [[ also works for selecting a single column at a time:
df <- ...
Are booleans as method arguments unacceptable? [closed]
...deline i.e. enums are often more readable in code than generic bools, ints etc but there will always be exceptions to the rule.
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A worthy developer-friendly alternative to PayPal [closed]
...ndly
REST APIs
Support for all mayor tender types (CC, DC, Gift, ACH, Lec, etc)
Support for all mayor card companies (even European ones)
Many different service plans that adapt to many needs (flat subscription, per transaction volume, per dollar volume, etc)
http://www.firstdata.com
...
Styles.Render in MVC4
... build "skins" or separate style models for say different devices, themes, etc. like so:
<link rel="stylesheet" href="~/UI/Skins/skin1/base.css" />
<link rel="stylesheet" href="~/UI/Skins/skin2/base.css" />
Using this system and Razor you can now switch out the Skin Path from a databa...
UnicodeDecodeError when reading CSV file in Pandas with Python
... = 'cp1252' # set file_encoding to the file encoding (utf8, latin1, etc.)
pd.read_csv(input_file_and_path, ..., encoding=file_encoding)
You do not want to be bothered with encoding questions, and only want that damn file to load, no matter if some text fields contain garbage. Ok, you only ha...
How do I move forward and backward between commits in git?
...t forward in time. To go forward multiple commits, use HEAD@{2}, HEAD@{3}, etc.
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When are C++ macros beneficial? [closed]
...for debug functions, to automatically pass things like __FILE__, __LINE__, etc:
#ifdef ( DEBUG )
#define M_DebugLog( msg ) std::cout << __FILE__ << ":" << __LINE__ << ": " << msg
#else
#define M_DebugLog( msg )
#endif
...
Closing Database Connections in Java
...method in order to release any other database resources (cursors, handles, etc) the connection may be holding on to.
Actually, the safe pattern in Java is to close your ResultSet, Statement, and Connection (in that order) in a finally block when you are done with them, something like that:
Connec...
Execute code when Django starts ONCE only?
...but that is because runserver has some tricks to validate the models first etc ... normal deployments or even when runserver auto reloads, this is only executed once.
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