splot signal to noise
milena wrote on May 18, 2011
hey,
I noticed that it is possible to get a wavelength dependent plot of the signal to noise if I have a spectrum that is extracted with apall and wavelength calibrated. To get it I have to plot image band 4 with splot. If I do it with my spectra, it doesn't work. I checked my headers. there is just band 1 (spectrum) and band 2 (background). I guess I have to change some of the apall parameters..??. do you have a solution?
thank you!!! :)
milena
I noticed that it is possible to get a wavelength dependent plot of the signal to noise if I have a spectrum that is extracted with apall and wavelength calibrated. To get it I have to plot image band 4 with splot. If I do it with my spectra, it doesn't work. I checked my headers. there is just band 1 (spectrum) and band 2 (background). I guess I have to change some of the apall parameters..??. do you have a solution?
thank you!!! :)
milena
Francisco Valdes wrote on May 18, 2011
Hello, I'm sorry I missed this message. You may have figured it out already, but I suspect you just need to set the "extras" parameter to yes.
Frank Valdes
Frank Valdes
Last post on May 18, 2011