Adding files with resources to find info about R

README.md

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-# R_info
-
-Some resources to learn about R
-
-The R Project for Statistical Computing is a  free environment for statistical computing and graphics. 
-
-More information about R: https://www.r-project.org/

README.org

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+* R_info
+
+Some resources to learn about R
+
+The R Project for Statistical Computing is a free environment for statistical computing and graphics.
+
+More information about R: https://www.r-project.org/
+
+** Index
+
+ * [[./doc/courses_other.org][Lectures and conferences]]
+ * [[./doc/resources_in_R.org][Resources to learn R within R]]
+   * [[./script/help_r.R][R-script with more resources to access R documentation]]

doc/courses_other.org

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+* Lectures and conferences
+
+** STAT 447: Data Science Programming Methods
+
+ * Dirk Eddelbuettel, Department of Statistics, University of Illinois, Fall 2021
+   * https://stat447.com/
+
+** Dirk Eddelbuettel lectures on data science
+
+ * https://github.com/eddelbuettel/lectures
+
+** STAT 385: statistical programming methods
+
+ * David Dalpiaz, Linjun Huang
+   * https://stat385.org/
+
+** David Dalpiaz repository
+
+ * https://github.com/daviddalpiaz?tab=repositories
+
+** stat545 UBC Lecture on data wrangling, exploration and analyses with R
+
+ Statitics using R at the University of British Columbia
+
+ * https://stat545.com
+ * https://stat545.stat.ubc.ca/
+ * https://github.com/rstudio-education/stat545
+
+** R/pharma conference
+
+ * Proceedings
+   * https://rinpharma.com/publication/
+
+** Jenny Bryan repository
+
+ * https://github.com/jennybc?tab=repositories
+
+** Curso visualização de dados em R :pt:
+
+ * http://sillasgonzaga.com/material/curso_visualizacao/
+
+** *Curso introdução à linguagem R para ecologia :pt:*
+
+ * Alexandre Adalardo de Oliveira
+   * http://ecor.ib.usp.br/doku.php
+
+** Blog curso sobre R e PostgreSQL
+
+ * Curso Consudata
+   * http://rpg.consudata.com.br/

doc/resources_in_R.org

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+* Resources to learn R within R
+
+** Package swirl
+
+ * https://swirlstats.com/
+
+** Learnr: write interactive tutorials in R
+
+ * https://rstudio.github.io/learnr/
+
+** R documentation
+
+Use the following conde in R:
+
+#+begin_example R
+  help.start()
+#+end_example
+
+In order to check the information about a package use the function ~vignette()~ with
+the name of the package as argument:
+
+#+begin_example R
+  vignette(package = "data.table")
+#+end_example
+
+Check the [[../script/help_r.R][script]] to see additional resources.

script/help_r.R

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+#' ---
+#' title: "Getting help in R"
+#' date: "2021-11-24"
+#' author: "Jose"
+#' output:
+#'   html_document:
+#'    code_folding: show
+#'    toc: yes
+#'    toc_float:
+#'      smooth_scroll: true
+#'    df_print: paged
+#'    highlight: zenburn
+#' ---
+
+#' remove objects
+#'
+objects()
+
+rm(list = ls())
+
+#' Libraries
+
+#' ## Common ways of getting help when working with R
+#'
+#' Within R use the "?" question symbol before any command and run
+#'
+?dput
+
+#' Use "help", "help.search" or "apropos" when need search for some terms
+#'
+
+#' Ask about control-flow constructs in R
+help("if")
+
+#' Information about extract or replace function
+help("[[")
+
+#' Help on "Quotes"
+help(Quotes)
+
+help.search("download file")
+
+#' Find the formal arguments in a function
+formalArgs(help)
+
+formalArgs(table)
+
+#' "find" can be used to know which package contains a function
+
+find("table")
+
+find("count")#' this will return nothing, because the package should be loaded
+
+library(dplyr)
+
+#' "apropos" give the name of objects containing the characters passed to the function
+
+count_testing <- c(1,2)
+
+apropos("count")
+
+#' ## Examples and demostration of functions
+#'
+example(glm)
+
+library(lubridate)
+example(ymd)
+
+example(Compare)
+
+library(dplyr)
+example(case_when)
+
+demo(graphics)
+
+#' Use "help.start" to view all R documentation
+help.start()
+
+#' ## Searching in packages
+#'
+#' Obtain help in packages
+
+library(help = data.table)
+
+
+#' Finding objects within a package
+
+library(data.table)
+
+objects(grep("data.table", search()))
+
+#' List vignettes in a package
+
+vignette(package = "data.table")
+
+browseVignettes("data.table")
+
+vignette("datatable-faq")
+
+#' Edit dataframe using R data editor
+#'
+
+carros <- cars
+
+fix(carros)
+
+carros
+
+#' Unload a package from the environment
+#'
+#' detach("package:data.table", unload = TRUE)
+
+#' End