oce (version 0.9-18)

plotScan: Plot seawater data in a low-level fashion

Description

Plot CTD data as time-series against scan number, to help with trimming extraneous data from a CTD cast.

Usage

plotScan(x, which=1, type='l',
    mgp=getOption("oceMgp"),
    mar=c(mgp[1]+1.5,mgp[1]+1.5,mgp[1],mgp[1]), ...)

Arguments

x

A ctd object, e.g. as read by read.ctd.

which

A vector containing numerical codes specifying the panels to draw: 1 for pressure vs scan, 2 for diff(pressure) vs scan, 3 for temperature vs scan, and 4 for salinity vs scan.

type

line type

mgp

3-element numerical vector to use for par(mgp), and also for par(mar), computed from this. The default is tighter than the R default, in order to use more space for the data and less for the axes.

mar

value to be used with par("mar"). If set to NULL, then par("mar") is used. A good choice for a TS diagram with a palette to the right is mar=par("mar")+c(0, 0, 0,

...

optional arguments passed to plotting functions.

Details

Plots ctd data as time-series against the scan number, as an aide to trimming to downcasts, etc.

See Also

summary.ctd summarizes a ctd object plot.ctd plot summary diagram of ctd object. read.ctd scans ctd object from a file.

Examples

library(oce)
data(ctdRaw) 
plotScan(ctdRaw)
abline(v=c(130, 350), col='red') # useful for ctdTrim()