[R] Nearest neighbour in a matrix
lea_olsen at yahoo.ca
Tue Sep 27 01:56:32 CEST 2011
I am brand new to R and doing an exercise for a class. I need to find the
nearest neighbour for points in the following matrix:
x1 x2 x3 x4 x5
[1,] 0.000000 2.828427 1.581139 2.236068 2.000000
[2,] 2.828427 0.000000 1.581139 4.123106 2.000000
[3,] 1.581139 1.581139 0.000000 2.549510 2.121320
[4,] 2.236068 4.123106 2.549510 0.000000 4.123106
[5,] 2.000000 2.000000 2.121320 4.123106 0.000000
I am not sure how to go about this as my knowledge of R functions and syntax
is very basic.
Is there a way of going at it using the pmin function? Otherwise what would
be a simple way of going about it?
Sorry for posting such a basic question! I've looked at the help pages and
other forums on the web but am truly stuck here.
Thanks in advance for your help...
View this message in context: http://r.789695.n4.nabble.com/Nearest-neighbour-in-a-matrix-tp3845747p3845747.html
Sent from the R help mailing list archive at Nabble.com.
More information about the R-help