Extract fluorescence peaks
eem_peaks(eem, ex, em, verbose = TRUE)
| eem | An object of class |
|---|---|
| ex | A numeric vector with excitation wavelengths. |
| em | A numeric vector with emission wavelengths. |
| verbose | Logical determining if additional messages should be printed. |
An object of class eemlist.
A data frame containing excitation and emission peak values. See details for more information.
Different excitation and emission wavelengths are often used to measure
EEMs. Hence, it is possible to have mismatchs between measured wavelengths
and wavelengths used to calculate specific metrics. In these circumstances,
EEMs are interpolated using the interp2 function from the
parcma library. A message warning the user will be prompted if data
interpolation is performed.
file <- system.file("extdata/cary/scans_day_1/", "sample1.csv", package = "eemR") eem <- eem_read(file, import_function = "cary") eem_peaks(eem, ex = c(250, 350), em = c(300, 400))#> sample ex em peak_intensity #> 1 sample1 250 300 0.2318111 #> 2 sample1 350 400 1.7270385