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

... functions transform and fit_transform about sklearn.decomposition.RandomizedPCA . The description of two functions are as follows ...
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Cancel split window in Vim

I have split my windows horizontally. Now how can I return to normal mode, i.e. no split window just one window without cancelling all of my open windows. I have 5 and do not want to "quit", just want to get out of split window. ...
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Calculate the execution time of a method

...sure comes here watch.Stop(); var elapsedMs = watch.ElapsedMilliseconds; Do not use DateTime to measure time execution in .NET. UPDATE: As pointed out by @series0ne in the comments section: If you want a real precise measurement of the execution of some code, you will have to use the performan...
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Record file copy operation with Git

... Git does not do rename tracking nor copy tracking, which means it doesn't record renames or copies. What it does instead is rename and copy detection. You can request rename detection in git diff (and git show) by using the -M op...
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How do I check the difference, in seconds, between two dates?

There has to be an easier way to do this. I have objects that want to be refreshed every so often, so I want to record when they were created, check against the current timestamp, and refresh as necessary. ...
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How to select between brackets (or quotes or …) in Vim?

... y, you can also delete or change text (e.g. ci), di]). I tried this with double and single-quotes and it appears to work there as well. For your data, I do: write (*, '(a)') 'Computed solution coefficients:' Move cursor to the C, then type yi'. Move the cursor to a blank line, hit p, and get ...
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Rethrowing exceptions in Java without losing the stack trace

...e. Not so if I replace it with the broader Exception e. How should this be done properly? – James P. Oct 31 '11 at 2:07 1 ...
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What does PorterDuff.Mode mean in android graphics.What does it do?

...o drawing the source image/color over the target image. In other words, it does what you would expect and draws the source image (the one you're drawing) on top of the destination image (the canvas) with the destination image showing through to the degree defined by the source image's alpha. You ...
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This Handler class should be static or leaks might occur: IncomingHandler

... want to use a nested class, it has to be static. Otherwise, WeakReference doesn't change anything. Inner (nested but not static) class always holds strong reference to outer class. There is no need for any static variables though. – Tomasz Niedabylski Jul 18 '...
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Best Practice: Access form elements by HTML id or name attribute?

...any seasoned JavaScript developer knows, there are many (too many) ways to do the same thing. For example, say you have a text field as follows: ...