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Topic: Programmatically specifying parameters in "Manipulate" command
Replies: 2   Last Post: Dec 19, 2012 4:55 AM

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 Ulrich Arndt Posts: 53 Registered: 10/1/09
Re: Programmatically specifying parameters in "Manipulate" command
Posted: Dec 19, 2012 4:55 AM

Hi,

create a string with the whole expression before you call ToExpression.

parameters = "{a,-1,4},{b,0,20}";
exp = "Manipulate[Plot[Sin[a x+b],{x,0,6}]," <> parameters <> "]";
ToExpression[exp]

Ulrich

Am 18.12.2012 um 08:36 schrieb abed.alnaif@gmail.com:

> Hello,
> Is there a way to specify the parameters for the "Manipulate" command

as a string or list? I'd like to do this since I am trying to build a
"framework" that makes use of the Manipulate command, and which can be
used with several different types of parameters. Using one of the
examples from the documentation to illustrate my point:
>
> This works, and illustrates what I'm trying to do:
> Manipulate[Plot[Sin[a x + b], {x, 0, 6}], {a, 1, 4}, {b, 0, 10}]
>
> However, I'd like the parameters to be a variable:
> This doesn't work:
>
> parameters = "{a,1,4},{b,0,10}";
> Manipulate[Plot[Sin[a x + b], {x, 0, 6}], ToExpression[parameters]]
>
> And neither does this:
>
> parameters = {{a, 1, 4}, {b, 0, 10}};
> Manipulate[Plot[Sin[a x + b], {x, 0, 6}], parameters]
>
> Is there a way to specify the parameters as a variable in the

Manipulate command?
>
> Thank you,
>
> Abed
>

Date Subject Author
12/19/12 Ulrich Arndt
12/19/12 Bob Hanlon