ImportFameSettings {TargetSearch} | R Documentation |
This function imports a list of retention standard markers.
ImportFameSettings(tmp.file = NA, mass = NA, ...)
tmp.file |
A character string naming a file with standard markers. |
mass |
The m/z standard marker. |
... |
Other options passed to read.delim function. |
The standard marker file is a tab-delimited text file with 3 columns. Column names doesn't matter. They must be in the following order.
LowerLimit
- The Retention time lower limit in seconds.
UpperLimit
- The Retention time upper limit in seconds.
RIstandard
- The RI value of that standard.
If no arguments are given, a default object will be returned.
A tsRim
object.
Alvaro Cuadros-Inostroza, Matthew Hannah, Henning Redestig
# get the RI marker definition file cdfpath <- file.path(.find.package("TargetSearchData"), "gc-ms-data") rim.file <- file.path(cdfpath, "rimLimits.txt") # set the mass marker to 87 mass <- 87 # load the definition rimLimits <- ImportFameSettings(rim.file, mass = mass) # sometimes you need to change the limits of a particular standard rimLimits(rimLimits)[2,] <- c(410, 450) # to change the mass value rimMass(rimLimits) <- 85