[R] Identifying the particular X or Y in a sorted list

[John Kane]

You do not seem to have suppied either code nor data.  Please supply both.

John Kane
Kingston ON Canada


> -----Original Message-----
> From: shankarlanke at gmail.com
> Sent: Wed, 2 May 2012 22:06:54 -0400
> To: r-help at r-project.org
> Subject: [R] Identifying the particular X or Y in a sorted list
> 
> Dear All,
> 
> I have a data sets as shown below A (Patient ID ), B and C are the
> Concentration of drug in blood on day 1 and day 4, D is the difference in
> conc. To do this in R I have written a code as follows, identified the
> number of patients who have more concentration on day 4 . Here I want to
> identify specifically the patient ID (is he patient 1 or 2 or 5 and 7),
> whose concentration is more.
> How to write a code to get the list of A (patient ID whose difference is
> more on day 4).
> 
> Data<-(myDf$B-myDf$C)
> sum(Data>0)
> 
>   A B CD (B-C)  1 14 10 4  2 12 7 5  3 11 15 -4  4 8 3 5  5 1 8 -7
> 
> I appreciate your help, thank you very much in advance.
> 
> Regards
> 
> 	[[alternative HTML version deleted]]
> 
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