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Set default CRAN mirror permanent in R
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You can set repos in your .Rprofile to restore your choice every time you start R
Edit: to be more precise:
Add
options(repos=structure(c(CRAN="YOUR FAVORITE MIRROR")))
to your .Rprofile
Alternatively, you can set the mirror site-wide in your Rpro...
How to create a static library with g++?
...meone please tell me how to create a static library from a .cpp and a .hpp file? Do I need to create the .o and the .a? I would also like to know how can I compile a static library in and use it in other .cpp code. I have header.cpp , header.hpp . I would like to create header.a . Test the heade...
How to change Android version and code version number?
...droid version and code version number Android Studio? I want to change apk file (app) on Google Play and I need to change Android version and code version number. I tried with this in AndroidManifest.xml file in Android Studio:
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Visual Studio build fails: unable to copy exe-file from obj\debug to bin\debug
... but it fixed it for me. I'm guessing that VS was keeping a handle on each file it generated, so it would know how to increment things? I'm really not sure and have never seen this happen before. But if someone else out there is also pulling their hair out, give it a try.
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How to obtain the last path segment of a URI
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Just do String idStr = new File(uri.getPath()).getName(), same as this answer but uses File instead of String to split the path.
– Jason C
May 6 '15 at 20:37
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What should I do if two libraries provide a function with the same name generating a conflict?
...le to modules linking to the library---equivalent to the extern keyword at file scope. How this is controlled is OS and linker dependent. And it is something I always have to look up.
share
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improv...
How to ignore xargs commands if stdin input is empty?
...n frequently. You can work around it by using homebrew to install the GNU fileutils.
– edk750
Jul 20 '16 at 19:41
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How can I echo a newline in a batch file?
How can you you insert a newline from your batch file output?
18 Answers
18
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SVN upgrade working copy
...ems:
cd [eclipse/workspace] # <- you supply the actual path here
for file in `find . -depth 2 -name "*.svn"`; do svn upgrade `dirname $file` ; done;
After Googling a bit, I found what seems to be the equivalent for Windows users:
http://www.rqna.net/qna/mnrmqn-how-to-find-all-svn-working-c...
Dump Mongo Collection into JSON format
...se> -c <collection_name>
Also helpful:
-o: write the output to file, otherwise standard output is used (docs)
--jsonArray: generates a valid json document, instead of one json object per line (docs)
--pretty: outputs formatted json (docs)
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