phase_shift {gcxgclab}

Phase shift

Description

phase_shift shifts the phase of the chromatogram.

Usage

phase_shift(data, shift)

Arguments

data

a list object. Data extracted from a cdf file, ideally the output from extract_data().

shift

a float object. The number of seconds to shift the phase by.

Details

This function shifts the phase of the chromatogram up or down by the specified number of seconds.

Value

A data.frame object. A list of two data frames. A TIC data frame and an MS data frame.

Examples

file <- system.file("extdata","sample1.cdf",package="gcxgclab")
frame <- extract_data(file,mod_t=.5)
shifted <- phase_shift(frame, -.2)
plot_chr(shifted, title='Shifted')