| subset,ctd-method {oce} | R Documentation |
Return a subset of a section object.
## S4 method for signature 'ctd' subset(x, subset, ...)
x |
A |
subset |
An expression indicating how to subset |
... |
optional arguments, of which only the first is examined. The only
possibility is that this argument be named |
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).
A ctd-class object.
Dan Kelley
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
library(oce) data(ctd) plot(ctd) ## Example 1 plot(subset(ctd, pressure<10)) ## Example 2 plot(subset(ctd, indices=1:10))