fp.sim.matrix {fingerprint} | R Documentation |
Given a set of fingerprints, a pairwise similarity can be calculated using the
various distance metrics defined for binary strings. This function calculates
the pairwise similarity matrix for a set of fingerprint
objectssupplied in a list
structure. Any of the distance metrics provided by distance
can be used and the
default is the Tanimoto metric.
Note that if the the Euclidean distance is specified then the resultant matrix is a distance matrix and not a similarity matrix
fp.sim.matrix(fplist, method='tanimoto')
fplist |
A list structure with each element being an object of class
fingerprint . These will can be constructed by hand or
read from disk via fp.read
|
method |
The type of distance metric to use. Alternatives are euclidean and
dice and mt . The default is tanimoto . Partial
matching is supported.
|
A matrix with dimensions equal to (length(fplist), length(fplist))
Rajarshi Guha rguha@indiana.edu
# make fingerprint objects fp1 <- new("fingerprint", nbit=6, bits=c(1,2,5,6)) fp2 <- new("fingerprint", nbit=6, bits=c(1,4,5,6)) fp3 <- new("fingerprint", nbit=6, bits=c(2,3,4,5,6)) fp.sim.matrix( list(fp1,fp2,fp3) )