* A brief introduction to R

Scripts describing simple tasks to learn the first steps to work with
data using the R programming environment

** First steps in R

 * [[./script/help_r.org][Asking for help to use R]]
 * [[./script/integerq_modulo.R][Integer quocient and modulo]]
 * [[./script/non_stand_eval.R][Non-standard evaluation in R]]

** Subsetting and indexing

 * [[./script/replace_values.R][Build column in table indexing values]]

** Reading data

 * [[./script/extractpdf.R][Reading pdf files]]

** Iteration

 * [[./script/iteration.R][Lapply, apply and for loop: brief introduction]]

** Interesting packages

 * [[./script/roadoi_package.R]['roadoi']]
 * [[./script/scraping.R]['crul' package - web scraping]]