read.sealevel {oce} | R Documentation |
Read a data file holding sea level data. BUG: the time vector assumes GMT, regardless of the GMT.offset value.
read.sealevel(file, tz = getOption("oceTz"), processingLog, debug = getOption("oceDebug"))
file |
a connection or a character string giving the name of the file to load. See Details for the types of files that are recognized. |
tz |
time zone. The default value, |
processingLog |
if provided, the action item to be stored in the log. (Typically only provided for internal calls; the default that it provides is better for normal calls by a user.) |
debug |
an integer specifying whether debugging information is
to be printed during the processing. This is a general parameter that
is used by many |
This function starts by scanning the first line of the file, from which it
determines whether the file is in one of two known formats: type 1, the
format used at the Hawaii archive centre, and type 2, the
comma-separated-value format used by the Marine Environmental Data Service.
(The file type is inferred by checking for the existence of the string
Station_Name
on the first line of the file, indicating type 2.) If
the file is in neither of these formats, the user might wish to scan it
directly, and then to use as.sealevel
to create a
sealevel
object.
An object of sealevel-class
.
Dan Kelley
The Hawaii archive site at
http://ilikai.soest.hawaii.edu/uhslc/datai.html
provides a graphical
interface for downloading sealevel data in Type 1, with format as described
at http://ilikai.soest.hawaii.edu/rqds/hourly.fmt
(this link worked
for years but failed at least temporarily on December 4, 2016). The MEDS
repository (http://www.isdm-gdsi.gc.ca/isdm-gdsi/index-eng.html)
provides Type 2 data.
Other things related to sealevel
data: [[,sealevel-method
,
[[<-,sealevel-method
,
as.sealevel
,
plot,sealevel-method
,
sealevel-class
,
sealevelTuktoyaktuk
,
sealevel
,
subset,sealevel-method
,
summary,sealevel-method
## Not run: library(oce) # this yields the sealevel dataset sl <- read.oce("h275a96.dat") summary(sl) plot(sl) m <- tidem(sl) plot(m) ## End(Not run)