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what is the difference between 'transform' and 'fit_transform' in sklearn

...is meant for when you have already computed PCA, i.e. if you have already called its .fit method. In [12]: pc2 = RandomizedPCA(n_components=3) In [13]: pc2.transform(X) # can't transform because it does not know how to do it. -------------------------------------------------------------------------...
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Could not find method compile() for arguments Gradle

... Looking back all this time, this is the most likely problem I was having. I have since obviously far moved on, but after getting notifications that this question was still open I think its only proper to indicate this as the 'correct' ans...
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XMLHttpRequest status 0 (responseText is empty)

... Why is this being downvoted? It is actually true! XHR requests from file:// URLs of files also on file:// URLs actually have status == 0 on success (tested on FF 24.0.5). – Daniel Roethlisberger Dec 31 '14 at 21:20 ...
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How to restore to a different database in sql server?

...mpCopy with the contents of your.bak. Example (restores a backup of a db called 'creditline' to 'MyTempCopy'; RESTORE FILELISTONLY FROM DISK='e:\mssql\backup\creditline.bak' >LogicalName >-------------- >CreditLine >CreditLine_log RESTORE DATABASE MyTempCopy FROM DISK='e:\mssql\backu...
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Swift - encode URL

...= "test/test" let escapedString = originalString.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed) print(escapedString!) Output: test%2Ftest Swift 1 In iOS 7 and above there is stringByAddingPercentEncodingWithAllowedCharacters var originalString = "test/test" var escapedString...
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Is nested function a good approach when required by only one function? [closed]

... user225312user225312 100k6060 gold badges158158 silver badges179179 bronze badges ...
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Location Services not working in iOS 8

...ois Fabre♦ 122k1111 gold badges9797 silver badges156156 bronze badges answered Jun 5 '14 at 14:58 özgözg 17.3k55 gold badges15...
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C-like structures in Python

... answered Aug 30 '08 at 15:18 gz.gz. 6,10511 gold badge1919 silver badges3232 bronze badges ...
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map function for objects (instead of arrays)

... function instead. – Alnitak Mar 5 '15 at 23:03 9 TBH I would have rather upvoted an answer that ...
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Co-variant array conversion from x to y may cause run-time exception

...js[0] = new Foo(); // again legal, with runtime exception In C#, you are allowed to reference an array of objects (in your case, LinkLabels) as an array of a base type (in this case, as an array of Controls). It is also compile time legal to assign another object that is a Control to the array. Th...