[R] rank in decreasing order

John Logsdon j.logsdon at quantex-research.com
Mon Aug 6 15:42:01 CEST 2007

total_list$field1.rank <- rank(-total_list$field1,ties.method="min")

Marvellous what a negative sign can achieve!  

You may want to put ties.method="max" though depending on what you want...:)

On Monday 06 August 2007 14:13:35 Jiong Zhang, PhD wrote:
> Hi All,
> I want to give ranks to elements in a column so I used:
> total_list$field1.rank <- rank(total_list$field1,ties.method="min")
> But this gives me the rank in increasing order. How do I get the ranks in
> decreasing order? I know decreasing = FALSE is not a legal argument here.
> Thanks.
> Jiong
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Best wishes


John Logsdon                               "Try to make things as simple
Quantex Research Ltd, Manchester UK         as possible but not simpler"
j.logsdon at quantex-research.com              a.einstein at relativity.org
+44(0)161 445 4951/G:+44(0)7717758675       www.quantex-research.com

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