Functions and Calls in R

Posted on Nov 10, 2010 in Programming • Tagged with R, function, programming, call, CRAN

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

  1. "[" is a function in R. It takes elements from a container (vector, matrix, list, etc.) For example, suppose lv is a list of vectors. The following code …


Continue reading

Use q to Query Text File Using SQL Syntax

Posted on Jun 05, 2016 in Programming • Tagged with programming, SQL, structured text, CSV, TSV

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

It is suggested that you use Python instead of q to manipulate text files!

Installation on Ubuntu

wajig install python3-q-text-as-data

General Tips

  1. The semantics of q is …


Continue reading

Tips on R

Posted on Oct 29, 2013 in Programming • Tagged with tips, programming, CRAN, R

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

** Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives. **

  1. commandArgs extract command line …


Continue reading

Regular Expression in R

Posted on Nov 14, 2012 in Programming • Tagged with R, regex, programming, CRAN, regular expression

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

** Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives. **

There are two flavors …


Continue reading

Install R Kernel for JupyterLab

Posted on Dec 25, 2016 in Programming • Tagged with programming, R, CRAN, IRKernel, Jupyter, JupyterLab

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

** Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives. **

  1. Install JupyterLab.
wajig install …

Continue reading

R Package DT

Posted on May 27, 2018 in Programming • Tagged with programming, cran, DT, datatables.js

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

** Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives. **

https://rstudio.github …


Continue reading