R: Plot a filter spectrum.

A_plot {ggspectra} | R Documentation

## Plot a filter spectrum.

### Description

This function returns a ggplot object with an annotated plot of a source_spct object showing spectral absorbance.

### Usage

    A_plot(spct, w.band, range, label.qty, span, annotations, text.size, na.rm, ...)

### Arguments

`spct` | a filter_spct object
`w.band` | list of waveband objects
`range` | an R object on which range() returns a vector of length 2, with min annd max wavelengths (nm)
`label.qty` | character string giving the type of summary quantity to use for labels
`span` | a peak is defined as an element in a sequence which is greater than all other elements within a window of width span centered at that element.
`annotations` | a character vector
`text.size` | numeric size of text in the plot decorations.
`na.rm` | logical.
`...` | other arguments passed to absorbance()

### Value

a `ggplot` object.

### Note

Note that scales are expanded so as to make space for the annotations. The object returned is a ggplot objects, and can be further manipulated.

[Package ggspectra version 0.2.3 Index]