rtdata {metabCombiner} | R Documentation |
This retrieves feature RT values from one or all constituent
dataset features of a metabCombiner
object. Alternatively, the average
RT value can be retrieved.
rtdata(object, data = NULL, value = c("obs", "mean")) ## S4 method for signature 'metabCombiner' rtdata(object, data = NULL, value = c("obs", "mean"))
object |
|
data |
dataset identifier to extract information from; if NULL, extracts information from all datasets |
value |
Either"obs" (observed - default option) or "mean" |
data frame or vector of retention time values
data(plasma30) data(plasma20) p30 <- metabData(head(plasma30,500), samples = "CHEAR") p20 <- metabData(head(plasma20,500), samples = "Red") p.comb <- metabCombiner(p30, p20, xid = "p30", yid = "p20") ##retrieve all RTs rt <- rtdata(p.comb, data = NULL) ##retrieve RTs from p30 rt <- rtdata(p.comb, data = "p30") ##retrieve mean RT rt <- rtdata(p.comb, value = "mean")