oce (version 0.2-1)

read.lobo: Read a lobo data file

Description

Read a data file created by a LOBO instrument.

Usage

read.lobo(file, cols=7, history)

Arguments

file

a connection or a character string giving the name of the file to load.

cols

number of columns in dataset.

history

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.)

Value

• An object of class "lobo", which is a list containing
• data
  a data.frame containing the following vectors: [object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
• metadata
  a list containing header, the header from the data file.
• history
  a history of processing, in the standard oce format.

source

The file was created as given in the example.

Details

This version of read.lobo is really quite crude, having been developed mainly for a ``predict the Spring bloom'' contest at Dalhousie University. In particular, the function assumes that the data columns are exactly as specified in the Examples section; if you reorder the columns or add new ones, this function is unlikely to work correctly. Furthermore, it should be noted that the file format was inferred simply by downloading files; the supplier makes no claims that the format will be fixed in time.

It is also worth noting that there is no read.oce equivalent to read.lobo, because the file format has no recognizable header.

References

http://lobo.satlantic.com and http://www.mbari.org/lobo/

See Also

A "lobo" object may be summarized with summary.lobo and plotted with plot.lobo.

Examples

library(oce)
uri <- paste("http://lobo.satlantic.com/cgi-bin/nph-data.cgi?",
  "min_date=20070220&max_date=20070305",
  "&x=date&",
  "y=current_across1,current_along1,nitrate,fluorescence,salinity,temperature&",
  "data_format=text",sep="")
lobo <- read.lobo(uri)