showstates {scuba} | R Documentation |
Plots a dive profile and interactively displays the diver's nitrogen saturation state at any intermediate stage indicated by the mouse.
showstates(d, model="DSAT")
d |
The dive. An object of class "dive" .
|
model |
The name of a decompression model:
one of "DSAT" , "USN" ,
"Workman" or "ZH-L16A" .
|
An object of class "dive"
represents a scuba dive.
It is created by the command dive
.
This function plots the dive using plot.dive
then waits for the user to click on the plot. This click selects
a time during the dive. The algorithm computes the nitrogen tensions
in the tissues at the indicated time, using haldane
,
and plots them as a bar graph. The cumulative oxygen toxicity is also
computed using oxtox
.
Note that the bar graph shows the relative nitrogen tensions in each compartment, that is, the tissue nitrogen tension divided by the "surfacing M-value" (tissue maximum nitrogen tension for a no-decompression dive at sea level).
If model
is "DSAT"
or "USN"
, the model parameters
are extracted from the corresponding entries in the datasets
Halftimes
and Mvalues
. If model="Workman"
the model parameters are extracted from the
dataset Workman65
. If model="ZH-L16A"
the model parameters are extracted from the
dataset BuehlmannL16A
.
The vector of nitrogen tensions (in ata) in the most recently clicked stage.
Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/
## Not run: showstates(dive(c(30,20))) ## End(Not run)