Return a subset of a section object.
# S4 method for ctd
subset(x, subset, ...)
A ctd
object, i.e. one inheriting from ctd-class
.
An expression indicating how to subset x
.
optional arguments, of which only the first is examined. The only
possibility is that this argument be named indices
. See “Details”.
A ctd-class
object.
This function is used to subset data within the
levels of a ctd object. There are two ways of working. If
subset
is supplied, then it is a logical expression
that is evaluated within the environment of the data
slot of the object (see Example 1). Alternatively, if the
...
list contains an expression defining indices
,
then that expression is used to subset each item within the
data
slot (see Example 2).
Other things related to ctd data: [[,ctd-method
,
[[<-,ctd-method
, as.ctd
,
cnvName2oceName
, ctd-class
,
ctdDecimate
, ctdFindProfiles
,
ctdRaw
, ctdTrim
,
ctd
, handleFlags,ctd-method
,
initialize,ctd-method
,
initializeFlagScheme,ctd-method
,
oceNames2whpNames
,
oceUnits2whpUnits
,
plot,ctd-method
, plotProfile
,
plotScan
, plotTS
,
read.ctd.itp
, read.ctd.odf
,
read.ctd.sbe
,
read.ctd.woce.other
,
read.ctd.woce
, read.ctd
,
setFlags,ctd-method
,
summary,ctd-method
,
woceNames2oceNames
,
woceUnit2oceUnit
, write.ctd
Other functions that subset oce objects: subset,adp-method
,
subset,adv-method
,
subset,amsr-method
,
subset,argo-method
,
subset,cm-method
,
subset,coastline-method
,
subset,echosounder-method
,
subset,lobo-method
,
subset,met-method
,
subset,oce-method
,
subset,odf-method
,
subset,rsk-method
,
subset,sealevel-method
,
subset,section-method
,
subset,topo-method
# NOT RUN {
library(oce)
data(ctd)
plot(ctd)
## Example 1
plot(subset(ctd, pressure<10))
## Example 2
plot(subset(ctd, indices=1:10))
# }
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