score_fun.cor {xcms}R Documentation

Scoring for MS/MS spectra Via correlation

Description

A similarity scoring function for MS/MS spectra against a reference via correlation.

Usage

  score_fun.cor(ref, exp)

Arguments

ref An array of numbers for the refference
exp An array of numbers for the test

Details

A score system using correlation analysis to correlate two arrays. If the arrays are a different length then the system will buffer the shorter one with 0s.

Value

score Correlation between the two arrays

Author(s)

H. Paul Benton, hpbenton@scripps.edu

References

H. Paul Benton, D.M. Wong, S.A.Strauger, G. Siuzdak "XCMS^2:" Analytical Chemistry 2008 DOI:http://pubs.acs.org/doi/abs/10.1021/ac800795f/

See Also

score_fun.distMatrix

Examples

## Not run: 
score<-xcms:::score_fun.cor(rnorm(10), rnorm(10))
score

a<-abs(rnorm(5))
a[2]<-xcms:::ppmDev(a[2], 30)
score<-xmcs:::score_fun.cor()
score
## End(Not run)

[Package xcms version 1.16.3 Index]