eem_cut: Cut emission and/or excitation wavelengths from EEMs

In PMassicotte/eemR: Tools for Pre-Processing Emission-Excitation-Matrix (EEM) Fluorescence Data

Cut emission and/or excitation wavelengths from EEMs

Description

Cut emission and/or excitation wavelengths from EEMs

Usage

eem_cut(eem, ex, em, exact = TRUE, fill_with_na = FALSE)

Arguments

eem	An object of class eemlist.
ex	A numeric vector of excitation wavelengths to be removed.
em	A numeric vector of emission wavelengths to be removed.
exact	Logical. If TRUE, only wavelengths matching em and/or ex will be removed. If FALSE, all wavelengths in the range of em and/or ex will be removed.
fill_with_na	Logical. If TRUE, fluorescence values at specified wavelengths will be replaced with NA. If FALSE, these values will be removed.

Value

An object of class eemlist.

Examples

# Open the fluorescence eem
file <- system.file("extdata/cary/scans_day_1/", "sample1.csv", package = "eemR")

eem <- eem_read(file, import_function = "cary")
plot(eem)

# Cut few excitation wavelengths
eem <- eem_cut(eem, ex = c(220, 225, 230, 230))
plot(eem)

eem <- eem_read(file, import_function = "cary")
eem <- eem_cut(eem, em = 350:400, fill_with_na = TRUE)
plot(eem)

PMassicotte/eemR documentation built on June 9, 2025, 12:36 p.m.