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R command for setting working directory to source file location in Rstudio

I am working out some tutorials in R. Each R code is contained in a specific folder. There are data files and other files in there. I want to open the .r file and source it such that I do not have to change the working directory in Rstudio as shown below: ...
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git pull VS git fetch Vs git rebase

...erge and rebase' that is answered here too: https://git-scm.com/book/en/v2/Git-Branching-Rebasing (the difference between altering the way version history is recorded) share | improve this answer...
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How to add a spinner icon to button when it's in the Loading state?

... Fixed: jsfiddle.net/6U5q2/270 Note this is for v2.3.2. Don't know if it works for 3.x – Eric Freese Sep 3 '13 at 22:59 13 ...
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Changing the Git remote 'push to' default

...ch of interest checked out. See 'Tracking Branches' in git-scm.com/book/it/v2/Git-Branching-Remote-Branches – norio Feb 9 '17 at 4:50 2 ...
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What are the correct version numbers for C#?

...ersion of the .NET framework and/or runtime. IIRC, it's effectively on CLR v2, but may have some aspects of .NET 3.5. – Jon Skeet Oct 14 '15 at 15:26 3 ...
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Install Gem from Github Branch?

...e" gem 'rails', :git => "git://github.com/rails/rails.git", :tag => "v2.3.5" Then you run bundle install or the short form is just bundle. Read more about it here: http://bundler.io/man/gemfile.5.html#GIT Update: There's a github source identifier. gem 'country_select', github: 'stefanpen...
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How can I reverse a NSArray in Objective-C?

... For obtaining a reversed copy of an array, look at danielpunkass' solution using reverseObjectEnumerator. For reversing a mutable array, you can add the following category to your code: @implementation NSMutableArray (Reverse) - ...
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Why should weights of Neural Networks be initialized to random numbers? [closed]

I am trying to build a neural network from scratch. Across all AI literature there is a consensus that weights should be initialized to random numbers in order for the network to converge faster. ...
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What are good grep tools for Windows? [closed]

...l's Select-String cmdlet was fine in v1.0, but is significantly better for v2.0. Having PowerShell built in to recent versions of Windows means your skills here will always useful, without first installing something. New parameters added to Select-String: Select-String cmdlet now supports new p...
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