ascent {scuba} | R Documentation |
Specify an Ascent Rate or Ascent Time.
ascent(speed=NULL, time=NULL)
speed |
Ascent rate in metres per minute.
Incompatible with time .
|
time |
Total ascent time in minutes.
Incompatible with speed .
|
An object of class "rate"
represents a diver's
rate of ascent or descent, or the total time taken to
ascend or descend. Such objects are useful in describing
dives, especially in the function dive
.
The value returned by ascent
represents an ascent rate
or ascent time. Exactly one of the arguments speed
and
time
should be given. If speed
is given, this specifies
a fixed rate of ascent, in metres per minute. If time
is given,
this specifies a fixed total time of ascent, in minutes.
An object of class "rate"
representing
the ascent rate or ascent time.
Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/
# Ascend at 18 metres/minute ascent(18) # Ascend in exactly 3 minutes ascent(time=3)