Hotfix release available: 2026-07-14c "Mort". upgrade now! [57.3] (what's this?)

Hotfix release available: 2026-07-14b "Mort". upgrade now! [57.2] (what's this?)

Hotfix release available: 2026-07-14a "Mort". upgrade now! [57.1] (what's this?)

New release available: 2026-07-14 "Mort". upgrade now! [57] (what's this?)

Hotfix release available: 2025-05-14b "Librarian". upgrade now! [56.2] (what's this?)

Hotfix release available: 2025-05-14a "Librarian". upgrade now! [56.1] (what's this?)

New release available: 2025-05-14 "Librarian". upgrade now! [56] (what's this?)

Hotfix release available: 2024-02-06b "Kaos". upgrade now! [55.2] (what's this?)

Hotfix release available: 2024-02-06a "Kaos". upgrade now! [55.1] (what's this?)

New release available: 2024-02-06 "Kaos". upgrade now! [55] (what's this?)

Hotfix release available: 2023-04-04b "Jack Jackrum". upgrade now! [54.2] (what's this?)

Hotfix release available: 2023-04-04a "Jack Jackrum". upgrade now! [54.1] (what's this?)

New release available: 2023-04-04 "Jack Jackrum". upgrade now! [54] (what's this?)

Hotfix release available: 2022-07-31b "Igor". upgrade now! [53.1] (what's this?)

Hotfix release available: 2022-07-31a "Igor". upgrade now! [53] (what's this?)

New release available: 2022-07-31 "Igor". upgrade now! [52.2] (what's this?)

New release candidate 2 available: rc2022-06-26 "Igor". upgrade now! [52.1] (what's this?)

New release candidate available: 2022-06-26 "Igor". upgrade now! [52] (what's this?)

Hotfix release available: 2020-07-29a "Hogfather". upgrade now! [51.4] (what's this?)

notes:r_cheat_sheet

Differences

This shows you the differences between two versions of the page.

--- notes:r_cheat_sheet [2026/11/02 08:50]
181.61.209.214 old revision restored (2026/08/03 06:31)
+++ notes:r_cheat_sheet [2026/11/04 14:36] (current)
216.73.217.9 old revision restored (2026/11/03 04:22)
@@ Line 37: / Line 37: @@
   * ''persp(mymat)'' plots a contour map in perspective.
   * ''image(volcano)'' generates a heat map of the matrix.
+  * ''qplot(weights, prices, color=types)'' - more attractive plotting using ggplot2 package.
 ===== Matrices =====
@@ Line 67: / Line 67: @@
   * ''read.csv('mydat.csv')'' to load a csv file
   * ''read.table'' to read text data with other separators
+  * ''con<-url("http://google.com","r")'' to read a webpage
+  * ''x<-readLines(con)'' to convert to an array of lines

notes/r_cheat_sheet.1793638233.txt.gz · Last modified: 2026/11/02 08:50 by 181.61.209.214

DokuWiki