getRIStandard {SIMAT} | R Documentation

## Get the RI standard information

### Description

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.

### Usage

    getRIStandard(file.name = character())

### Arguments

`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.

### Details

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.

### Value

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

### Author(s)

Mo R. Nezami Ranjbar

### References

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

### See Also

`getRI`

### Examples

        # 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)

[Package SIMAT version 1.18.0 Index]