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--- notes:r_cheat_sheet [2026/06/11 00:24]
114.119.135.121 old revision restored (2026/06/04 10:58)
+++ notes:r_cheat_sheet [2026/06/13 19:09] (current)
188.235.16.74 old revision restored (2026/06/05 07:31)
@@ Line 28: / Line 28: @@
 ===== Plotting =====
-  * ''barplot[myseq]'' creates a bar plot of the ''myseq'' vector.
+  * ''barplot[myseq]'' creates a bar plot of the ''myseq'' vector. ''abline(h=y)'' plots a horizontal line at height y.
   * ''plot[x,y]'' plots x vs y e.g. <code>
 x=seq[0,20,.1]
@@ Line 45: / Line 45: @@
   * ''mymatrix[,2]'' returns entire second column.
+===== Statistics =====
+  * ''mean(myvec)  median(myvec)   sd(myvec)''
 ===== File Handling =====
   * ''list.files()'' to list files in furrent directory
   * ''source("file.R")'' to load file of code

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