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Convert data.frame column to a vector?

... This is particularly good to know because the df$x syntax returns a vector. I used this syntax for a long time, but when I had to start using df['name'] or df[n] to retrieve columns, I hit problems when I tried to send them to functions that expected vect...
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MySQL - force not to use cache for testing speed of query

...rrent date/time will disable the query cache for that selection: SELECT *,NOW() FROM TABLE See "Prerequisites and Notes for MySQL Query Cache Use" @ http://dev.mysql.com/tech-resources/articles/mysql-query-cache.html shar...
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How to check if object property exists with a variable holding the property name?

...otypeOf(yoshi, hattori); if ("sneak" in yoshi) console.log("Yoshi can now sneak"); if (!("creep" in hattori)) console.log("Hattori cannot creep"); Object.setPrototypeOf(hattori, kuma); if ("creep" in hattori) console.log("Hattori can now creep"); if ("creep" in yoshi) console.log(...
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Image library for Python 3

...4, has a nice doc, you may pip3 install Image (I was using pillow without knowing), and you from PIL import Image. It also supports all the major platforms now. When looking for a PIL for python3, this is definitely the choice. – Yosh Oct 13 '14 at 15:25 ...
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Eclipse error: “The import XXX cannot be resolved”

... This bug is now at least 9 years old. – user1133275 Mar 28 '19 at 16:40 ...
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UITableView - scroll to the top

... try to put the code inside this: DispatchQueue.main.asyncAfter(deadline: .now()+0.1, execute: { // the code } – Alessandro Ornano Mar 12 '18 at 20:55 ...
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How to get the nth element of a python list or a default if not available

... never fails. I still don't like to rely on try/except, for a case that I know will happen, but this increases my willingness to consider it. – ToolmakerSteve Dec 15 '13 at 3:27 6 ...
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jQuery Date Picker - disable past dates

...).datepicker("option", option, date); } }); Edit - from your comment now it works as expected http://jsfiddle.net/nicolapeluchetti/dAyzq/1/ share | improve this answer | ...
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iOS 8 removed “minimal-ui” viewport property, are there other “soft fullscreen” solutions?

...minimal-ui, we have come up with a different workaround, using calc() and known iOS address bar height to our advantage: The following demo page (also available on gist, more technical details there) will prompt user to scroll, which then triggers a soft-fullscreen (hide address bar/menu), where he...
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How to find the width of a div using vanilla JavaScript?

... That, or cientWidth, altho I don't know the real difference. – JCOC611 Jan 24 '11 at 21:51 127 ...