Hi, I'm a little confused about the "dummify" situation: In the _function_ reference, it says that dummify() takes a series argument, which should be discrete. Fine. Then in the _command_ reference the input to the dummify command is a list, which is also fine - basically, the command automatically loops through the series in the list input. However, in the doc for the cmd it says you can use "ols y dummify(x)". Isn't this mixing up hansl functions and commands? So that this example should be moved to the _function_ doc? (And perhaps be cross-referenced from the _command_ doc.) thanks sven