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). |

A list of four estimates: `sap`

, the median, the mean, and the weighted mean.

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 \(exp(-2*((p
- sap) / dp)^2)\).

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`

#> [1] 10.1325 10.1325 10.1325 10.1325