oceInspectApp: Inspect an oce CTD-like object
In dankelley/oceInspect: Inspect oce object

Description Usage Arguments Details Author(s) Examples

View source: R/oceInspect.R

This is an R shiny app that displays the contents of CTD-like oce objects, i.e. objects that contain salinity, temperature, pressure, longitude and latitude. A combination of GUI and keystroke actions (type ? to list) permit flagging data points of interest, and the app can save this information in a CSV file, for later processing. This can be useful for tasks that benefit from a human eye, including identification of features such as mixed layers and intrusions, and of various errors that can result during measurement.

1	oceInspectApp(objects = NULL)

objects

either a list containing either CTD-like oce objects or a names of files containing such objects. For the file-name case, the data are read with oce::read.oce().

GUI controls are provided for selecting the plotted field, and the app also responds to keystrokes. A text box shows the current location of the mouse pointer in the (x,y) coordinates of the graph, as well as the data point that is nearest. Pressing the 0 key (or any other numeric key, up to 9) saves this information into a buffer along with the name of the input data and the present plot view. Points may be removed from this buffer by placing the mouse precisely on top of them and then typing '-' or 'd'.

The buffer data may be saved to a CSV file (the name of which is patterned on the input filename). This happens if the context is switched (with the "Dataset" pulldown menu), if the w key is pressed, or if the Quit button is pressed. If oceInspectApp() is used again in the same directory, it will load such files at startup.

Dan Kelley

library(oceInspect)
# Handle an argo file and a ctd file.
if (interactive()) {
    f1 <- system.file("extdata/D6903548_029.nc", package="oceInspect")
    f2 <- system.file("extdata/BED0302.cnv", package="oceInspect")
    oceInspectApp(c(f1, f2))
}