[R] paired samples, matching rows, merge()

[Kay Cichini]

hello cecilia,
i tried:

yn<-y[y$k1%in%x$k1,]
xn<-x[x$k1%in%y$k1,]
x1st<-unique(match(yn$k1,xn$k1))
y1st<-unique(match(xn$k1,yn$k1))
new<-cbind(k1=intersect(y$k1,x$k1),k2.x=xn[x1st,2],k2.y=yn[y1st,2])

giving:

     k1 k2.x k2.y
[1,]  1   20   10
[2,]  2   22   12
[3,]  3   23   14
[4,]  5   25   16

...but wih the irregulary duplicated values in k1 i dead-ended and i guess
it could get tricky to solve this.

greetings,
kay

-----
------------------------
Kay Cichini
Postgraduate student
Institute of Botany
Univ. of Innsbruck
------------------------

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