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Use of ~ (tilde) in R programming Language
... English you'd say something like "Species depends on Sepal Length, Sepal Width, Petal Length and Petal Width".
The myFormula <- part of that line stores the formula in an object called myFormula so you can use it in other parts of your R code.
Other common uses of formula objects in R
The l...
Android: “Path for project must have only one segment”
...swered Feb 10 '11 at 18:43
Android EveAndroid Eve
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Convert timedelta to total seconds
...
(2) If you are using those timestamps for other purposes, you need to consider what you are doing, because the result has a big smell all over it:
gmtime() returns a time tuple in UTC but mktime() expects a time tuple in local time.
I'm in Melbourne, Australia where the standard TZ is UTC+10, but...
jQuery: Performing synchronous AJAX requests
...) {
/* if result is a JSon object */
if (result.valid)
return true;
else
return false;
}
});
}
share
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improve this a...
How to compare times in Python?
...ieslander's answer (and generally should wait a few more minutes than you did :P), as it's a bit more specific to exactly what you asked.
– Roger Pate
Dec 2 '09 at 8:40
add a ...
“Templates can be used only with field access, property access, single-dimension array index, or sin
...like
@foreach (var item in Model)
{
@Html.DisplayFor(m => !item.IsIdle, "BoolIcon")
}
I solved this just by doing
@foreach (var item in Model)
{
var active = !item.IsIdle;
@Html.DisplayFor(m => active , "BoolIcon")
}
When you know the trick, it's simple.
The difference is t...
Split string based on a regular expression
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
How do I define and use an ENUM in Objective-C?
...
@DaveDeLong, Is this still valid in 2015? I have the typedef declared in the .m file and it compiles and runs well.
– Iulian Onofrei
Apr 14 '15 at 13:34
...
Java enum - why use toString instead of name
...re the enum constant, you should use name() as toString may have been overriden
If you want to print the enum constant in a user friendly way, you should use toString which may have been overriden (or not!).
When I feel that it might be confusing, I provide a more specific getXXX method, for examp...
Proper way to add svn:executable
... How does the executable attribute get set without using propset? I didn't use it, and to the the best of my knowledge, nobody else did either. It appears on three files in the same directory and nowhere else, and there seems to be nothing special about those files. (They're java files, not ...