This procedure produces Figure , a plot of a
IUE spectrum extracted by IUEDR (SUN/37) and written using the
The output file was subsequently edited to make the file label lines PONGO
comments and to add a line of PONGO column labels (see §)
at the beginning of the file.
IUEDR indicates bad or missing data in an output spectrum by attributing zero
fluxes to the affected wavelength samples.
These can be detected and discarded using the SELCOND parameter of
the READF command: e.g.
PONGO> readf (SWP_DATA) selcond="Flux > 0.0" noall
In this example PONGO draws a polyline across all missing data flagged by IUEDR.
PONGO [2exof Applications for Interactive Data Plotting [2exon 2.0-2