delScattering {EEM}

Delete scattering rays

Description

This function deletes two regions that are not related to fluorescence emission: (1) regions where emission wavelength is shorten than excitation light, (2) scattering rays and their second, third and forth order lights.

Usage

delScattering(EEM, rep = 0, first = 30, second = 40, third = 40,
  forth = 40)

Arguments

EEM

A list containing EEM data as created by readEEM function.

rep

(optional) Regions to be deleted are to be replaced with rep: 0 or NA

first

(optional) Width of region to be deleted for first order scattering rays [nm]

second

(optional) Width of region to be deleted for second order scattering rays [nm]

third

(optional) Width of region to be deleted for third order scattering rays [nm]

forth

(optional) Width of region to be deleted for forth order scattering rays [nm]

Value

A list similar to input EEM is returned but with all scattering rays deleted.

References

Fujita, K., Tsuta, M., Kokawa, M., and Sugiyama, J. (2010). Detection of deoxynivalenol using fluorescence excitation–emission matrix. Food and Bioprocess Technology, 3(6), 922–927.

Examples

data(applejuice)
drawEEM(delScattering(applejuice, NA), 1)