add.echogram            Add two echograms
bottom.hac              Read detected bottom range from an HAC file
echo.noise              Sample echogram data (120 kHz)
echogram                Echogram visualisation
join.echogram           Merge echograms
mask.echogram           Mask an echogram
match.echogram          Match ping times from two echograms
mergeSvmat              Merge inequal Sv data matrices
navigation.hac          Compute bearing, navigated distance and speed
noise.echogram          Modelling ambient noise in echograms
palette.echogram        Design color palettes for echograms
position.hac            Read geographic position data from an HAC file
read.echogram           Read echogram data from an HAC file
sample.echogram         Select and sample data values from an echogram
trim.echogram           Trim an echogram vertically or horizontally
