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Add column with number of days between dates in DataFrame pandas

... Do can we get rid of the "days" portion in the result incase we just need to see the numeric value ie. -58, -26 in this case. – 0nir Oct 22 '14 at 17:24 ...
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Using Vim's persistent undo?

... Thanks Kyle, it's a good idea to create .vim if it doesn't exist. Unfortunately the -p flag doesn't exist on Windows so I edited the answer to call mkdir twice to ensure Windows compatibility. – Matthias Braun F...
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Difference between `data` and `newtype` in Haskell

...T erased, which is a memory word that is used for dictionary lookups to decide what instance method to use for a given piece of data. People argue that this word isn't a "type", which I think depends on your perspective, but there you go. – Gabriel L. Aug 28 '1...
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Difference between an application server and a servlet container?

... +1 from my side,Good differences.Any more differences @Bozho – Deepak Feb 18 '11 at 14:15 1 ...
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Check if a table exists in Rails

... + 1 More elegant solution. Also works if the model overrides the table name. – Daniel Rikowski Sep 21 '13 at 14:03 1 ...
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How to use transactions with dapper.net?

... answer (stackoverflow.com/a/20047975/47672): connection must be opened inside of TransctionScope using block in case you choose this answer. – 0x49D1 Jun 8 '18 at 12:00 ...
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Android Studio: Javadoc is empty on hover

I have moved from Eclipse to Android Studio recently, and am liking it. However, I miss the Javadoc on hover feature from Eclipse. ...
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JUnit confusion: use 'extends TestCase' or '@Test'?

...hods can be annotated with @Before/@BeforeClass and @After/@AfterClass providing more flexibility Support for @Rule annotations on things like ExpectedException Support for the @Ignored annotation Support for alternative test runners using @RunWith To test for expected exceptions in a JUnit 3 Test...
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When should I use perror(“…”) and fprintf(stderr, “…”)?

Reading the man pages and some code did not really help me in understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") . ...
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How is mime type of an uploaded file determined by browser?

...have a web app where the user needs to upload a .zip file. On the server-side, I am checking the mime type of the uploaded file, to make sure it is application/x-zip-compressed or application/zip . ...