Hi there, I have encountered two kinds of strange bugs with gretl 2015-10-16 x86_64 on Windows: 1.) Opening a file like the attached one with a "just launched" gretl instance will result in automatically substituting the string variables with IDs. However, starting gretl with a script which opens the file with the --preserve option works fine. And, after this was done first within the current gretl instance, if one "selects" open from the menu, it works also as-if the "preserve" option is turned on. Cost me a bit of time to get to it... 2.) The same file as attached, opened such that the string variables "name" from t1 to t3 are there. Then restrict the sample such that "t2" is not included. The factorized boxplot will have as x-tics t1 , t2. The same is true if you take the "--permanent" option. This made me more of a headache until I got there ;) I read that there are some bugs in the recent non-release gretl version but I do not know if this was already known. The example file and the example scripts are attached. PS: Is there an easy way to pipe individual varnames for the x-tics in a boxplot to gnuplot via the {} command? And, why can I do something like "Values = (Values ==1 ? 10 : Values)" but not "Name = (Name == 't1' ? 'uiui' : Name)"? Is there an alternative to do so which I am not aware of? Regards and many thanks Frederik ------------ Frederik Schaff, Dipl.-Volkswirt FernUniversität in Hagen Fakultät für Wirtschaftswissenschaft Lehrstuhl für VWL, insb. Wirtschaftstheorie Universitätsstraße 11 (TGZ) 58097 Hagen Telefon: +49 (0) 2331 987-4454 E-Mail: Frederik.Schaff(a)FernUni-Hagen.de http://www.fernuni-hagen.de/wirtschaftstheorie/team/frederik.schaff.shtml