Thank you Dr Summers. Also I can not figure out creating dummy variables.I have a variable it is nbhd. I need to have separate dummy variables for every nbhd. What are the steps? Best, On Thu, Feb 6, 2014 at 4:01 PM, Summers, Peter <psummers(a)highpoint.edu&gt;wrote: > Dilek, > > > > Does your variable have non-positive values? If so, taking the log will > give you NA or nan for those entries. > > > > If you have a variable X1, then something like "D1 = (X1>0)" will > generate a dummy variable equal to 1 for positive values of X1. You can do > this from the console, or from the GUI. Click Add, define new variable, > then enter the corresponding formula in the dialog box. > > > > I hope this helps. > > PS > > > > > > *From:* gretl-users-bounces(a)lists.wfu.edu [mailto: > gretl-users-bounces(a)lists.wfu.edu] *On Behalf Of *dilek guler > *Sent:* Thursday, February 06, 2014 4:27 PM > *To:* Gretl list > *Subject:* [Gretl-users] (no subject) > > > > Hello, > > I want to make log variable and i see a message > > it is: > > "Generated missing values" > > > > How can i correct it? > > > > And the second question is How can i make separate dummy variables for > another one? > > > > Best! > > _______________________________________________ > Gretl-users mailing list > Gretl-users(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-users >