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4bad
2010 Feb 01
1
Comparing Variables and Writing a New Column
HI,
I am using Windows XP and R version 2.9.2. I have a data frame written by R
similar to the following:
Lab_ID Analysis_Soil Results -4MAD -2.5MAD
+2.5MAD +4MAD
55003 Calcium-2008-116 900 961 1121.5
1656.5 1817
55003 Calcium-2008-117 3321 2175 2380.5
3065.5 3271
55003 Calcium-2008-118 3342 3155 4019...