hdgdiff(3m)

NAME
hdgdiff - - Compare mean and end ping heading data

SYNOPSIS
hdgdiff(year_base, asc_file, plot_title, note )

DESCRIPTION
Plot of heading differences vs. time, and calculate statistical data about these. Differences are checked to be less than a maximal allowed threshold value (this may happen sometimes if the system delivering heading information has a malfunction). These points are plotted with a cross. Input data file must contain the following columns: End ping GPS time Mean ping heading End ping heading

PARAMETERS

year_base
    Base year used for the decimal times in input file.

asc_file
    Input data file.

plot_title
    Title for the plot.

note
    Additionnal string to print on the plot.

FILES
hdg_diff.ps

AUTHORS
Pierre Jaccard, Geophysical Institute, University of Bergen, 1999