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Applying a function to every row of a table using dplyr?

When working with plyr I often found it useful to use adply for scalar functions that I have to apply to each and every row. ...
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Failed to load JavaHL Library

... to use JavaHL, Subclipse also provides a pure-Java SVN API library -- SVNKit (http://svnkit.com). Just install the SVNKit client adapter and library plugins from the Subclipse update site and then choose it in the preferences under Team > SVN. ...
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Pipe output and capture exit status in Bash

I want to execute a long running command in Bash, and both capture its exit status, and tee its output. 15 Answers ...
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Disable scrolling in webview?

...false); or you can try using single column layout but this only works with simple pages and it disables horizontal scrolling: //Only disabled the horizontal scrolling: webview.getSettings().setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN); You can also try to wrap your webview with v...
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Any implementation of Ordered Set in Java?

If anybody is familiar with Objective-C there is a collection called NSOrderedSet that acts as Set and its items can be accessed as an Array 's ones. ...
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How to make HTML input tag only accept numerical values?

... field only takes numbers as value. The input is not part of a form. Hence it doesn't get submitted, so validating during submission is not an option. I want the user to be unable to type in any characters other than numbers. ...
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Eclipse will not start and I haven't changed anything

...the .log file. I've since restarted the pc multiple times, tried running it in safe mode and ran eclipse.exe -clean and nothing works. ...
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DESTDIR and PREFIX of make

...onfigure --prefix=*** Number 1 determines where the package will go when it is installed, and where it will look for its associated files when it is run. It's what you should use if you're just compiling something for use on a single host. make install DESTDIR=*** Number 2 is for installin...
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Is there a library function for Root mean square error (RMSE) in python?

... mean_squared_error function. The RMSE is just the square root of whatever it returns. from sklearn.metrics import mean_squared_error from math import sqrt rms = sqrt(mean_squared_error(y_actual, y_predicted)) share ...
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Jenkins on OS X: xcodebuild gives Code Sign error

... Keychains need to be unlocked before they can be used. You can use security unlock-keychain to unlock. You can do that interactively (safer) or by specifying the password on the command line (unsafe), e.g.: security unlock-keychain -p mySecretPassword... Obviously, putting this into a script c...