This class stores data from Argo floats.
data
As with all oce
objects, the data
slot
for argo
objects is a
list
containing the main data for the object.
The key items stored in this slot include equal-length vectors time
, longitude
, latitude
and equal-dimension matrices pressure
, salinity
, and temperature
.
metadata
As with all oce
objects, the metadata
slot
for argo
objects is a list
containing
information about the data
or about the object itself.
Examples that are of common interest include id
, a vector of ID codes for the profiles, and dataMode
, a vector of strings indicating whether the profile is in archived mode ("A"
), realtime mode ("R"
), or delayed mode ("D"
).
processingLog
As with all oce
objects, the processingLog
slot
for argo
objects is a
list
with entries describing the creation and evolution
of the object. The contents are updated by various oce
functions to
keep a record of processing steps. Object summaries and
processingLogShow
both display the log.
Although the [[<-
operator may permit modification of the contents
of argo
objects (see [[<-,argo-method
),
it is better to use oceSetData
and oceSetMetadata
, because that will save an entry
in the processingLog
to describe the change.
The full contents of the data
and metadata
slots of a argo
object named argo
may be retrieved in the standard R way. For example,
slot(argo, "data")
and slot(argo, "metadata")
return
the data
and metadata
slots, respectively. The
[[,argo-method
operator can also be used to access slots,
with argo[["data"]]
and argo[["metadata"]]
, respectively.
Furthermore, [[,argo-method
can be used to retrieve
named items (and potentially some derived items) within the
metadata
and data
slots, the former taking precedence
over the latter in the lookup. It is also possible
to find items more directly, using oceGetData
and
oceGetMetadata
, but this cannot retrieve derived items.
An argo
object may be read with read.argo
or
created with as.argo
. Argo data can be gridded to constant
pressures with argoGrid
or subsetted with
subset,argo-method
. Plots can be made with
plot,argo-method
, while summary,argo-method
produces statistical summaries and show
produces overviews.
See http://www.argo.ucsd.edu/Gridded_fields.html for some argo-related datasets that may be useful in a wider context.
Other classes provided by oce: adp-class
,
adv-class
, bremen-class
,
cm-class
, coastline-class
,
ctd-class
, lisst-class
,
lobo-class
, met-class
,
oce-class
, odf-class
,
rsk-class
, sealevel-class
,
section-class
, topo-class
,
windrose-class
Other things related to argo data: [[,argo-method
,
[[<-,argo-method
, argoGrid
,
argoNames2oceNames
, argo
,
as.argo
,
handleFlags,argo-method
,
plot,argo-method
, read.argo
,
subset,argo-method
,
summary,argo-method