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Updating packages in Emacs
... *Packages* buffer (and also update the list of packages), and then type U x.
package-refresh-contents unconditionally tries to download a package list from all repos you've added to package-archives; package-archive-contents is non nil if you have already downloaded the package list.
ELPA is the...
iPhone - Get Position of UIView within entire UIWindow
...e screen's and device coordinate systems are different and should not be mixed up with window coordinates.
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Showing data values on stacked bar chart in ggplot2
...asily be stacked by using position = position_stack(vjust = 0.5) in geom_text.
ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
geom_bar(stat = "identity") +
geom_text(size = 3, position = position_stack(vjust = 0.5))
Also note that "position_stack() and posi...
What does [object Object] mean?
... in the comments, you should use the tools included in browsers like Firefox or Chrome to introspect objects by doing console.log(whichIsVisible()) instead of alert.
Sidenote: IDs should not start with digits.
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How to get mouse position in jQuery without mouse-events?
... the stored information.
jQuery(function($) {
var currentMousePos = { x: -1, y: -1 };
$(document).mousemove(function(event) {
currentMousePos.x = event.pageX;
currentMousePos.y = event.pageY;
});
// ELSEWHERE, your code that needs to know the mouse position without ...
What's the use/meaning of the @ character in variable names in C#?
...u can't have a class with a member variable with the name "params". The proxy object that was generated contained a property that looked like this:
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Best way to serialize an NSData into a hexadeximal string
I am looking for a nice-cocoa way to serialize an NSData object into a hexadecimal string. The idea is to serialize the deviceToken used for notification before sending it to my server.
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How to permanently add a private key with ssh-add on Ubuntu? [closed]
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This answer is so good that ssh-add shouldn't exist. Who wants to have a command that "temporarily" fixes a problem and breaks unexpectedly when you can just edit a config file permanently.
– RussellStewart
Aug 18 '14 at 18:55
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How to check if object (variable) is defined in R?
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You want exists():
R> exists("somethingUnknown")
[1] FALSE
R> somethingUnknown <- 42
R> exists("somethingUnknown")
[1] TRUE
R>
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Using group by on multiple columns
I understand the point of GROUP BY x .
2 Answers
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