| rskPatm {oce} | R Documentation |
Estimate atmospheric pressure in rsk record.
rskPatm(x, dp = 0.5)
x |
an rsk object. |
dp |
Half-width of pressure window to be examined (in decibars). |
Pressures must be in decibars for this to work. First, a subset of pressures is
created, in which the range is sap-dp to sap+dp. Here,
sap=10.1325 dbar is standard sealevel atmospheric pressure. Within this
window, three measures of central tendency are calculated: the median, the mean,
and a weighted mean that has weight given by exp(-2*((p - sap) / dp)^2).
A list of four estimates: sap, the median, the mean, and the weighted mean.
Dan Kelley
The documentation for rsk explains the structure of
rsk objects, and also outlines the other functions dealing with them.
Other things related to rsk data:
[[,rsk-method,
[[<-,rsk-method,
as.rsk(),
plot,rsk-method,
read.rsk(),
rsk-class,
rskToc(),
rsk,
subset,rsk-method,
summary,rsk-method
library(oce) data(rsk) print(rskPatm(rsk))