TechQA.

Creating a combination data.table in R

278 views Asked by Snowflake At 2015-06-08T14:31:56+00:00 08 June 2015 at 14:31 2025-09-17T03:16:18+00:00

I would like to do the following:

A B
1 2
1 3
1 4
2 3
2 4
3 4

using data.table, but I am not sure how to exclude the already used numbers cumulatively.

r data.table
Original Q&A
0

There are 0 answers

Related Questions in R

  • "Python-Eggs is writable by group/others" Error in Windows 7
  • Disable Trac Authentication for local Usage
  • Trac - Limited assign permissions
  • trac python bindings messed up
  • trac notification not sending emails
  • No handler matched request to /login for Trac 1.0 using WSGI
  • Trac packages not properly installed
  • Allowing anonymous users in Trac (apache/mod_wsgi)
  • Change contents of "assign to"
  • In trac, is it possible to use trac variables -- like the list of Reports -- in wiki pages?

Related Questions in DATA.TABLE

  • "Python-Eggs is writable by group/others" Error in Windows 7
  • Disable Trac Authentication for local Usage
  • Trac - Limited assign permissions
  • trac python bindings messed up
  • trac notification not sending emails
  • No handler matched request to /login for Trac 1.0 using WSGI
  • Trac packages not properly installed
  • Allowing anonymous users in Trac (apache/mod_wsgi)
  • Change contents of "assign to"
  • In trac, is it possible to use trac variables -- like the list of Reports -- in wiki pages?

Popular Questions

  • How do I undo the most recent local commits in Git?
  • How can I remove a specific item from an array in JavaScript?
  • How do I delete a Git branch locally and remotely?
  • Find all files containing a specific text (string) on Linux?
  • How do I revert a Git repository to a previous commit?
  • How do I create an HTML button that acts like a link?
  • How do I check out a remote Git branch?
  • How do I force "git pull" to overwrite local files?
  • How do I list all files of a directory?
  • How to check whether a string contains a substring in JavaScript?
  • How do I redirect to another webpage?
  • How can I iterate over rows in a Pandas DataFrame?
  • How do I convert a String to an int in Java?
  • Does Python have a string 'contains' substring method?
  • How do I check if a string contains a specific word?

Popular Tags

javascript python java c# php android html jquery c++ css ios sql mysql r reactjs node.js arrays c asp.net json python-3.x ruby-on-rails .net sql-server swift django angular objective-c pandas excel

Trending Questions

  • UIImageView Frame Doesn't Reflect Constraints
  • Is it possible to use adb commands to click on a view by finding its ID?
  • How to create a new web character symbol recognizable by html/javascript?
  • Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
  • Heap Gives Page Fault
  • Connect ffmpeg to Visual Studio 2008
  • Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
  • How to avoid default initialization of objects in std::vector?
  • second argument of the command line arguments in a format other than char** argv or char* argv[]
  • How to improve efficiency of algorithm which generates next lexicographic permutation?
  • Navigating to the another actvity app getting crash in android
  • How to read the particular message format in android and store in sqlite database?
  • Resetting inventory status after order is cancelled
  • Efficiently compute powers of X in SSE/AVX
  • Insert into an external database using ajax and php : POST 500 (Internal Server Error)
  • Privacy
  • Terms
  • Cookies
  • Homegardensmart
  • Math
  • Aftereffectstemplates