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notes:r_cheat_sheet

Differences

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

--- notes:r_cheat_sheet [2026/07/30 01:43]
179.221.50.99 old revision restored (2026/07/05 08:36)
+++ notes:r_cheat_sheet [2026/07/31 18:55] (current)
47.254.159.162 old revision restored (2026/06/07 07:45)
@@ Line 26: / Line 26: @@
   * ''myseq + 1'' adds one to all elements of the myseq vector.
   * Scalar operations or functions on vectors typically produce other vectors e.g. + - == sin(myseq)
+  * ''head(myvec)'' , ''tail(myvec)'' to show start or end of vector
 ===== Plotting =====
@@ Line 67: / Line 68: @@
   * ''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.1785401016.txt.gz · Last modified: 2026/07/30 01:43 by 179.221.50.99

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