Wednesday, January 04, 2006

st: RE: A dialog box to perform simulations.

No doubt you could use a dialog to do this, but it doesn't strike me as the easiest approach.

Be aware that -display- has a very simple interactive handle that could well be adequate here, namely -_request()-.

To the question how do you design an interactive program in Stata, my answer is to design a syntax that you want to use!

Nick n.j.cox@durham.ac.uk

adiallo5@worldbank.org > 1. How to design a framework (possibly through a dialog box - > though I am > totally novice to dialogs - ) to make simulations, after a > regression? What I have in mind is something like: > > regress yvar xvar1 xvar2 > predict yhat1 > > Now allow user to make simulations: > > - replace xvar1 or xvar2 or both by some values > > predict yhat2. > > I am trying to do that with VB under excel (using streg > results), but not only > it is boring, I am sure it is doable in stata. > > 2. More generally, how to design an interractive program in > stata (in the sense > that during the course of the program, it receives inputs - arguments- > from the user and implement results). Something like the > cin/cout commands in > C++. Again possibly through a dialog box (such as a box to > compute the square > root of a number). But it can also be a stand alone program. > Something like: > > myprogram // in the stata command line > > enter a value // stata prompts a request > > 5 // user enters value > > 2.236068 // stata outputs an answer > > enter a new value or type "exit" to exit // stata prompts a > new request > > ... > > exit // end session > > > Again, I think I have to invest a lot in dialog programming, > but I want to know > if definitely, this is doable in stata (especially my first question).

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