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notes:r_cheat_sheet

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notes:r_cheat_sheet [2026/07/31 13:19]
163.7.15.57 old revision restored (2026/06/08 17:46) 		notes:r_cheat_sheet [2026/07/31 18:55] (current)
47.254.159.162 old revision restored (2026/06/07 07:45)
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   * ''myseq + 1'' adds one to all elements of the myseq vector.   * ''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)   * 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 ===== ===== Plotting =====
Line 67: Line 68:
   * ''read.csv('mydat.csv')'' to load a csv file   * ''read.csv('mydat.csv')'' to load a csv file
   * ''read.table'' to read text data with other separators   * ''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.1785529154.txt.gz ยท Last modified: 2026/07/31 13:19 by 163.7.15.57

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