Re: [R] how to complete this task on data management

2006-08-23 Thread Petr Pikal
s > > case 3.5) in a vector. > > > > which(diff(cumsum(diff(data<3.5)==1)<2)!=0)+2 > > > > HTH > > Petr > > > > > > > > On 23 Aug 2006 at 11:23, zhijie zhang wrote: > > > > Date sent: Wed, 23 Aug 2006 11:23:03

Re: [R] how to complete this task on data management

2006-08-23 Thread Petr Pikal
==1)<2)!=0)+2 HTH Petr On 23 Aug 2006 at 11:23, zhijie zhang wrote: Date sent: Wed, 23 Aug 2006 11:23:03 +0800 From: "zhijie zhang" <[EMAIL PROTECTED]> To: R-help@stat.math.ethz.ch Subject: [R] how to comp

[R] how to complete this task on data management

2006-08-22 Thread zhijie zhang
Dear friends, When i clean my dataset , i met a difficulty suppose my data set is : *> data<-data.frame(x=c(1:5,1,2,3)) > data x 1 1 2 2 3 3 4 4 5 5* 6 1 7 2 8 3 Now i need to add the data which are less than 3.5 at the bottom, not including the top data, so the results should be : x 1 1 2 2