Re: [Gretl-devel] changes regarding genr and lists

In working on some scripts lately I've been building lists using the syntax list foo = null loop <something> ... list foo += varname ... endloop This works OK, but I kept forgetting to say "list foo += .." rather than just "foo += ...". The result was an "unknown variable in command" error message, which I found confusing at first, then annoying. (Appearing on the left-hand side of a genr-type expression, "foo" was not recognized as the name of anything, unless you prompted gretl to look for lists with the "list" keyword.) So I've made a start on incorporating lists into the genr mechanism more fully. You no longer have to repeat "list" in front of listnames, as above. Once a list is created, you can add to it, subtract from it, or redefine it, just using its name.