Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Re: goto label, no loop, Mathematica 6
Posted:
Jan 25, 2013 1:33 AM


Your code example seems quite confused and not very specific as to what constitutes the model.
First, you can't use Switch as a variable since it is a Mathematica function, which you might actually use.
I'm not quite certain about the use of Goto but I don't think you could use it to transfer between notebook cells. You have to use it within a single cell, or within a compound statement, or within a Module as is shown on the Help page for Goto.
Goto may have a few uses but is not generally a good programming method. You could try something like this:
evaluateModel[modelType_] := (If[modelType == 2, Goto[model2]]; Print["Evaluating Model 1"]; Goto[end]; Label[model2]; Print["Evaluating Model 2"]; Label[end]; "Return the model");
But a far better method would be:
evaluateModel[modelType_] := Switch[modelType, 1, Print["Evaluating Model 1"]; "Return the model", 2, Print["Evaluating Model 2"]; "Return the model"]
David Park djmpark@comcast.net http://home.comcast.net/~djmpark/index.html
From: bob [mailto:stefanie.schubert@whu.edu]
Hi, I'd like to write down my model (several cells) and afterwards implement another version of that model. But as I use the same names for variables, Mathematica has to "forget" former assignments.
A solution woul be something like that (which I don't know how to do it in Mathematica unfortunately):
Switch=1 (*a variable that can be set to 1 or 2: tell matehmatica to read only Part 1 (or 2)*) if Switch=2 goto label_switch2 Model Part 1 (several cells) label_switch2 MOdel Part 2 (several cells)
But if I'm right, goto is usually used for loops, so that the order is label  goto; but not as required here: goto label
Thanks for any help!!



