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Reshaping data.frame from wide to long format
...alues (as a result of the , in the numbers). You can repair that with gsub and as.numeric:
long$value <- as.numeric(gsub(",", "", long$value))
Or directly with data.table or dplyr:
# data.table
long <- melt(setDT(wide),
id.vars = c("Code","Country"),
variable.name...
Get protocol + host name from URL
... is not domain: try urlparse.urlparse('http://user:pass@example.com:8080') and find it gives parts like 'user:pass@' and ':8080'
– starrify
Oct 21 '14 at 8:02
23
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How to center the content inside a linear layout?
I'm trying to center an ImageView inside a LinearLayout horizontally and vertically, but I just can't do it.
The main reason why I'm not using a RelativeLayout for that is because I need the layout_weight (my Activity consists of four columns that should be equally divided, and also respon...
Is there any way to use a numeric type as an object key?
...
@TimDown, and what I'm saying is that you are wrong. "Setting a numeric property on an Array can affect the length property" is an incorrect statement. Javascript Array properties are completely independent of Array elements. What conf...
What's the easiest way to escape HTML in Python?
...ascii, so encode() will throw an exception at you.
– Andrew Kolesnikov
Jun 22 '10 at 15:56
@Andrew Kolesnikov: Have yo...
How do I get an HttpContext object from HttpContextBase in ASP.NET MVC 1?
I'm working with some WebForms/MVC-agnostic tools, and I need to get an instance of HttpContext given a reference to an HttpContextBase object. I can't use HttpContext.Current because I need this to work asynchronously as well ( HttpContext.Current returns null during an asynchronous reques...
How to remove “onclick” with JQuery?
...stackoverflow.com/questions/209029/…
– Lance Cleveland
Jan 6 '12 at 18:04
6
See first comment o...
Bootstrap Alert Auto Close
My need is to call alert when I click on Add to Wishlist button and should disappear the alert in 2 secs. This is how I tried, but the alert is disappearing instantly as soon as it is appearing. Not sure, where the bug is.. Can anyone help me out?
...
Remove file from SVN repository without deleting local copy
...ilable in svn 1.5.0+. I'm afraid you have to manually copy the file beforehand or check it out using svn cat afterwards.
– phihag
May 12 '09 at 8:51
4
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Which regular expression operator means 'Don't' match this character?
...rs.
Instead of specifying all the characters literally, you can use shorthands inside character classes: [\w] (lowercase) will match any "word character" (letter, numbers and underscore), [\W] (uppercase) will match anything but word characters; similarly, [\d] will match the 0-9 digits while [\D]...