Various methods exist, some of which use parameters:
[object Object],[object Object],[object Object]
parameters
Depends on method; see above.
debug
a flag that turns on debugging. The value indicates the
depth within the call stack to which debugging applies. For
example, read.adv.nortek() calls read.header.nortek(),
so that read.adv.nortek(...,debug=2)
Value
An object of class"pt", with data
having been trimmed in some way, and with the pressure being reduced
by mean sea-level pressure.
Details
The "water" method is mainly for quick and dirty work.
In many cases, the user will be working with several files, and so it
will make sense to use the "time" method, to synchronize the
time series. Normally, notes will have been taken in the field, so no
guessing need be done about the time the instruments went in the
water. In some cases, though, the time will have to be inferred from
the data, and so it might make sense to start by trimming with the
"water" method, after which summary.pt is used
to find the probably time when the instrument was put into the water.
After the data are trimmed in time, the pressure record is modified by
subtracting 10.1325~dbar, the average sea-level pressure.
See Also
The documentation for pt-class explains the structure of
PT objects, and also outlines the other functions dealing with them.