FindBottom: FindBottom

In leachth/ReadEKRaw_updated:

Description

Find bottom in backscatter matrix.

Usage

FindBottom(data, nf = 1, d = -30, smooth = TRUE)

Arguments

data	A ReadEKRaw_ConvertPower data object (i.e., you must run ReadEKRaw and then ConvertPower first). A list of three objects called data, (1) File header, (2) pings, (3) GPS data. These three objects are themselves lists.
nf	near field range in meters, user specified, defines the depth range from 0 - nf to exclude; defaults is 1 m
d	discrimination level in dB, pixels below this value are not considered when finding the bottom; default is -30 dB. Echoview default is -50 dB
smooth	defaults to TRUE

Value

adds a vector named bot.depth to each object in data$pings. Also generates a new element to data called bottom.line that is a vector of the bottom depths at all indexed value in 1:length(data$pings), this vector is created for ease when plotting or other analyses.

leachth/ReadEKRaw_updated documentation built on May 23, 2019, 9:02 p.m.