I am currently working on an ARCH model. I already carried out my ARCH 1 model and got the coefficients in my script output. However, I can't find a way to make Gretl show me (and save) the data on the volatility predicted by the model, that should come under the form of a time-series. I need to get these data and save them as a new variable in my dataset. Has anyone got any tip on how to do it? I looked for it in the users' guide, gretl function/command reference but wasn't very lucky, I only found something of the sort on GARCH models ($h), that unfortunately doesn't work with ARCH.