For example,a <- c(1,1,2,3,4,3,2) , the second minimum value is 2, how can I find this second minimum value ?
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Tao Hu
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Just sort the unique values and take the second one. – Rich Scriven May 18 '17 at 02:55
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http://stackoverflow.com/questions/2453326/fastest-way-to-find-second-third-highest-lowest-value-in-vector-or-column – Edgar Santos May 18 '17 at 02:55
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You will need unique values for partial sorting to work here. – Rich Scriven May 18 '17 at 03:01
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1`min( a[a!=min(a)] )` is work,thank you ! – Tao Hu May 18 '17 at 03:02