Re: [R] subtracting rows for unique

Thank you so much. It worked perfectly:)   Cc: R help Sent: Tuesday, July 23, 2013 1:34 PM Subject: Re: subtracting rows for unique Hi, Try: dat1<- read.table(text=" ID Date x2 x1  x3 56 25-Jun-01 10 2  126 56 29-Oct-01 10 2  140 56 18-Mar-02 1

Re: [R] subtracting rows for unique

Hi, Try: dat1<- read.table(text=" ID Date x2 x1  x3 56 25-Jun-01 10 2  126 56 29-Oct-01 10 2  140 56 18-Mar-02 10 2  445 56 6-Jun-03 10 2    224 56 16-Jan-04  10 2    NA 58 10-Jan-02 10.8 1 715 58 26-Dec-03 10.8 1    NA ",sep="",header=TRUE,stringsAsFactors=FALSE)  unlist(with(da