plotPeaks {andurinha}

plotPeaks

Description

This function makes a graphic representation of the peaks over the second derivative and/or absorbance sum spectra.

Usage

plotPeaks(peaksWN, data_abs, data_ndd, fontFamily = NULL)

Arguments

peaksWN

A vector with the peaks wave numbers.

data_abs

A data frame, which contains in the first column the wave numbers and in the following columns the samples absorbances.

data_ndd

A data frame, which contains in the first column the wave numbers and in the following columns the samples second derivative values.

fontFamily

The desired graphic font family.

See Also

importSpectra, findPeaks and gOverview

Examples

# Plot the peaks found by findPeaks()
# 1. Based on absorbance sum spectrum
fp.abs <- findPeaks(andurinhaData, ndd = FALSE)
plotPeaks(fp.abs[[3]]$WN, fp.abs$dataZ)

# 2. Based on second derivative spectrum
fp.ndd <- findPeaks(andurinhaData, cutOff = 0.25)
plotPeaks(fp.ndd[[4]]$WN, fp.ndd$dataZ, fp.ndd$secondDerivative)