Spectra plotter — spectra_plotter • TUBAFsoilFunctions

Simple plotting interface for spc datasets created with OPUSraw_to_preprocessed(). Note: Large amount of spc might be laggy. Subset data beforehand or set sample size to smaller number for random sampling.

Usage

spectra_plotter(
  dataset,
  spc_id = "spc_rs",
  sample_size = nrow(dataset),
  interactive = F,
  reverse_x = T,
  col_var = "ID",
  leg_pos = "none"
)

Arguments

dataset: a spc dataset, as created by OPUSraw_to_Preprocessed
spc_id: The id of the nested spc matrix. Choose from c("spc","spc_rs","spc_sg","spc_sg_bl", "spc_sg_bl_rs4","spc_sg_snv","spc_sg_snv_rs4")
sample_size: How many spectra should be plotted? Default is all. If lower than nrow(dataset), spc are sampled randomly. To select specific spc, filter dataset beforehand.
interactive: logical: If TRUE, a ggplotly interactive plot will be created.
reverse_x: logical: If TRUE, x-axis will be plotted in reverse (decending wavenumber)
col_var: str to selcet variable column for spc coloring
leg_pos: legend position arg. handed to ggplot legend.position