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Hi Robert, you need to use the FIGARO ascin command. That will read just these sort of text files. Regards, Peter. On Thu, 11 Jul 2013, rcs wrote: > I have a set of echelle spectra, which have been reduced for me to 1d form, > using IRAF, but have been provided to me only as text files, with three > columns: wavelength, flux, error (w, f, e). These files were produced as part > of the stitching together of the various echelle orders, and I have a horrid > feeling that there are no IRAF originals. The person concerned is currently > incommunicado.... > > I have tried using the CONVERT facility, ascii2ndf, but I cannot work out > what to use as the SHAPE parameter - when I use the number of rows, the > conversion is done, but not correctly: hdstrace reveals that it has taken the > data in the order w, f, e and stopped one-third of the way through the file. > How can I get ascii2ndf to recognise that the three rows are different types > of data? > > I attach a sample data file. > > Robert > > -- > Dr Robert C Smith 01273 678974 > Emeritus Reader in Astronomy Pevensey III, 4C1 > Astronomy Centre, Dept of Physics & Astronomy > University of Sussex, Falmer, Brighton BN1 9QH > [log in to unmask] > http://astronomy.sussex.ac.uk/~rcs/rcs.html > > > ---- > Starlink User Support list > For list configuration, including subscribing to and unsubscribing from the > list, see > https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=STARLINK > -- Peter W. Draper, http://astro.dur.ac.uk/~pdraper ---- Starlink User Support list For list configuration, including subscribing to and unsubscribing from the list, see https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=STARLINK