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How to wait for a keypress in R?

...Press [enter] to continue") If you don't want to assign it to a variable and don't want a return printed in the console, wrap the readline() in an invisible(): invisible(readline(prompt="Press [enter] to continue")) shar...
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IE8 and JQuery's trim()

... Thanks, I thought JQuery's functions were chain-able and that's how they all worked! – Abs Aug 9 '10 at 11:01 38 ...
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c# open file with default application and parameters

...t or Reader, you can't open the file in the specified page. On the other hand, if you are Ok with specifying Acrobat or Reader, keep reading: You can do it without telling the full Acrobat path, like this: Process myProcess = new Process(); myProcess.StartInfo.FileName = "acroRd32.exe"; //n...
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What's the purpose of META-INF?

...-INF folder containing some meta files. What is the purpose of this folder and what can I put there? 12 Answers ...
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Bootstrap: Position of dropdown menu relative to navbar item

...lasses that need to be applied changed with the release of Bootstrap 3.1.0 and again with the release of Bootstrap 4. If one of the below solutions doesn't seem to be working double check the version number of Bootstrap that you're importing and try a different one. Bootstrap 3 Before v3.1.0 You ...
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Lightweight Java Object cache API [closed]

...or an example of creating an in memory cache. You can specify a max size, and a time to live. EHCache does offer some advanced features, but if your not interested in using them - don't. But it's nice to know they are there if your requirements ever change. Here is an in memory cache. Created i...
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Disable Automatic Reference Counting for Some Files

I have downloaded the iOS 5 SDK and found that ARC is a great feature of the new Apple compiler. For the time being, many third party frameworks don't support ARC. Could I use ARC for my new code and keep the current retain/release code unchanged? The ARC converter doesn't work here, because some fr...
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how to set “camera position” for 3d plots using python/matplotlib?

I'm learning how to use mplot3d to produce nice plots of 3d data and I'm pretty happy so far. What I am trying to do at the moment is a little animation of a rotating surface. For that purpose, I need to set a camera position for the 3D projection. I guess this must be possible since a surface can b...
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How to write trycatch in R

...t wrapped insided a function (unlike that # for the condition handlers for warnings and error below) }, error=function(cond) { message(paste("URL does not seem to exist:", url)) message("Here's the original error message:") message(cond...
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ImportError in importing from sklearn: cannot import name check_build

...Mannu Yes; Also for me on jupyter notebook, just restarting (shutting down and click-open again) that ipynb py-kernel worked without restarting all of the jupyter notebook. – Abhimanu Kumar May 2 '18 at 15:01 ...