palette.echogram: Design color palettes for echograms

In hvillalo/echogram: Echogram Visualisation and Analysis

Design color palettes for echograms

Description

This function allows to design and visualise color palettes to be used in echograms.

Usage

palette.echogram(Svthr, Svmax, col.sep = NULL, col.nb = NULL, scheme = NULL, visu = FALSE)

Arguments

Svthr	lower visualisation limit in decibels (dB).
Svmax	upper visualisation limit in dB.
col.sep	separation between colors in dB.
col.nb	number of colors.
scheme	color scheme for echogram, “parula” (the default), “EK500”, or “echov”. It can also be a vector of valid color names, or a function generating color names.
visu	logical. If TRUE, a visual representation of the palette is created.

Details

This function is mainly intended to be called by plot.echogram, however it is possible to use it directly in order to have a first impression of a custom color palette.

Value

A list with two elements

palette	a vector of colors
breaks	a vector of color breaks

Author(s)

Héctor Villalobos

See Also

echogram

Examples

palette.echogram()
palette.echogram(Svthr=-75, col.sep=1.5, scheme="EK500", visu=TRUE)
palette.echogram(Svthr=-81, col.sep=3, scheme=c("white", "blue", "black"), visu=TRUE)

hvillalo/echogram documentation built on June 13, 2025, 11:45 a.m.