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notes:r_cheat_sheet

Differences

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

--- notes:r_cheat_sheet [2026/07/24 17:02]
46.184.22.6 old revision restored (2026/07/20 13:54)
+++ notes:r_cheat_sheet [2026/07/24 22:18] (current)
123.20.8.11 old revision restored (2026/06/02 15:48)
@@ 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.1784937735.txt.gz · Last modified: 2026/07/24 17:02 by 46.184.22.6

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