explorespec: Plot spectral curves

Description Usage Arguments Value Note Author(s) Examples

Description

Plots one or multiple spectral curves in the same graph to rapidly compare groups of spectra.

Usage

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explorespec(rspecdata, by = NULL, scale = c("equal", "free"),
  legpos = "topright", ...)

Arguments

rspecdata

(required) a data frame, possibly an object of class rspec that has wavelength range in the first column, named 'wl', and spectral measurements in the remaining columns.

by

number of spectra to include in each graph (defaults to 1)

scale

defines how the y-axis should be scaled. 'free': panels can vary in the range of the y-axis; 'equal': all panels have the y-axis with the same range.

legpos

legend position control. Either a vector containing x and y coordinates or a single keyword from the list: "bottomright", "bottom", "bottomleft", "left", "topleft", "top", "topright", "right" and "center".

...

additional parameters to be passed to plot

Value

Spectral curve plots

Note

Number of plots presented per page depends on the number of graphs produced.

Author(s)

Pierre-Paul Bitton bittonp@uwindsor.ca

Examples

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## Not run: 
data(sicalis)
explorespec(sicalis, 3)
explorespec(sicalis, 3, ylim = c(0, 100), legpos = c(500, 80))
## End(Not run)


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