How to execute a function each time the slider is dragged?

Question

I've created a function f and a slider:

Slider[Dynamic[y],{1,4}]

How to execute/call f each time the slider is dragged?

Still no code formatting or capitalization in your original question (other people were kind enough to edit)... — Ajasja, Dec 12 '12 at 14:14

score 10 · Answer 1 · answered Dec 12 '12 at 11:34

10

Like this

Slider[Dynamic[y,(y=#;f[y])&],{1,4}]

You can can test using for example

f[y_]:=Print@y;

I advise you to look at the help of Dynamic that contains examples of other related features.

answered Dec 12 '12 at 11:34

faysou

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score 4 · Answer 2 · answered Dec 12 '12 at 11:59

4

Another rout to take would be just using Manipulate. It will update content inside of it automatically in addition to automatically creating an interface.

f[y_] := y
Manipulate[f[y], {y, 1, 4}]

enter image description here

answered Dec 12 '12 at 11:59

Vitaliy Kaurov

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@user4972 What do you mean? Do you need more help? – Vitaliy Kaurov Dec 13 '12 at 16:17
@VitaliyKaurov He means that he registered the code above and got a patent for it. You're forbidden to use Manipulate[] again without his granting permission. – Dr. belisarius Jan 12 '13 at 10:52
@belisarius big :D – Vitaliy Kaurov Jan 13 '13 at 06:43

How to execute a function each time the slider is dragged?

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