getRIStandard: Get the RI standard information
In SIMAT: GC-SIM-MS data processing and alaysis tool

Description Usage Arguments Details Value Author(s) References See Also Examples

This function generates a table which can be used for RI calibration when calling the getRI function It retrieves the retention indexes of RI standards and their retention times in a table, e.g. data frame.

1	getRIStandard(file.name = character())

file.name

a string including the full name of a csv file including the information of RI standards in two columns, one for retention time and one for retention index.

The input of this function is a table in .csv format RItable. The file should include the information of RI standards in two columns, one for retention times and one for retention index of the standards. The information is usually extracted by running a mixture of RI standards for calibration. The output is a table, i.e. a data frame, including the retention time and retention index of the RI standards which can be further used when calling getRI function.

A data frame including retention times and retention idexes of the RI standards

Mo R. Nezami Ranjbar

http://omics.georgetown.edu/SIMAT.html

getRI

    # load an example data set
    extdata.path <- system.file("extdata", package = "SIMAT")
    datafile = file.path(extdata.path, "RIStandards.csv")
    
    # read RItable from file
    RItable <- getRIStandard(file.name = datafile)