getstd {pmd}

Find the independent ions for each retention time hierarchical clustering based on PMD relationship within each retention time cluster and isotope and return the index of the std data for each retention time cluster.

Description

Find the independent ions for each retention time hierarchical clustering based on PMD relationship within each retention time cluster and isotope and return the index of the std data for each retention time cluster.

Usage

getstd(list, corcutoff = NULL, digits = 2, accuracy = 4)

Arguments

list

a list from getpaired function

corcutoff

cutoff of the correlation coefficient, default NULL

digits

mass or mass to charge ratio accuracy for pmd, default 2

accuracy

measured mass or mass to charge ratio in digits, default 4

Value

list with std mass index

See Also

getpaired,getsda,plotstd

Examples

data(spmeinvivo)
pmd <- getpaired(spmeinvivo)
std <- getstd(pmd)