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How to get everything after last slash in a URL?
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Casimir Crystal
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answered Aug 31 '11 at 7:28
Luke404Luke404
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Opposite of %in%: exclude rows with values specified in a vector
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You can use the ! operator to basically make any TRUE FALSE and every FALSE TRUE. so:
D2 = subset(D1, !(V1 %in% c('B','N','T')))
EDIT:
You can also make an operator yourself:
'%!in%' <- function(x,y)!('%in%'(x,y))
c(1,3,11)%!in%1:10
[1] FALSE FALSE TRUE
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
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This is a recurring subject in Stackoverflow and since I was unable to find a relevant implementation I decided to accept the challenge.
I made some modifications to the squares demo present in OpenCV and the resulting C++ code below is able to detect a sheet...
How to duplicate object properties in another object?
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for(var k in firstObject) secondObject[k]=firstObject[k];
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How to choose between Hudson and Jenkins? [closed]
It took me an hour or so to work out Hudson has only branched recently (Jan/2011)
I have no idea how rapid the change of each branch is now, but more importantly, what is the direction each branch is taking and what are key points so one could make a choice between which to go with?
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How do I create a multiline Python string with inline variables?
I am looking for a clean way to use variables within a multiline Python string. Say I wanted to do the following:
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Ajax, back button and DOM updates
...vascript modifies DOM in page A, user navigates to page B and then hits back button to get back to the page A. All modifications to DOM of page A are lost and user is presented with version that was originally retrieved from the server.
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Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
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Tim RobinsonTim Robinson
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Aren't Python strings immutable? Then why does a + “ ” + b work?
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It's even more convincing to try something like x = 'abc'; x[1] = 'x' in the Python repl
– xpmatteo
May 23 '17 at 6:11
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Does “\d” in regex mean a digit?
...d 3 but not 2 . I was wondering if \d matches a digit satisfying what kind of requirement? I am talking about Python style regex.
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