Re: retrieving who

>
> I am pretty new in netlogo's world, I wonder if you can help me with a simple question.
>
> How can I ask a turtle to inform me about his ID?
>
> I know how to use the who function to select a particular turtle but I do not know how to ask the turtle to give me ID.
>
> The dictionary says: "
> You can use the turtle reporter to retrieve a turtle with a given
> who number" but I cannot find out how to do it from the code
>;

Hi Manuel -

You should probably take a look at the variables section of the
programming guide:

http://ccl.northwestern.edu/netlogo/docs/programming.html#variables

turtles can access their own variables directly, for example.

ask turtles[ print who ]

will print the who numbers of all the turtles to the command center.

the observer can access turtle variables using OF, for example:

print [who] of turtle 0

will print '0' to the command center.

hope this helps.

esther

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THANKS, ESTHER AND HOWARD FOR YOUR HELP! --- EL MAR 3-JUN-08, ESTHER VERREAU <EVERREAUCCL.NORTHWESTERN.EDU> ESCRIBIó: DE: ESTHER VERREAU <EVERREAUCCL.NORTHWESTERN.EDU> ASUNTO: RE: [NETLOGO-USERS] RETRIEVING WHO PARA: NETLOGO-USERSYAHOOGROUPS.COM FECHA: MARTES, 3 DE JUNIO DE 2008, 10:55 AM > &GT; I AM PRETTY NEW IN NETLOGO'S WORLD, I WONDER IF YOU CAN HELP ME WITH A SIMPLE QUESTION. > &GT; HOW CAN I ASK A TURTLE TO INFORM ME ABOUT HIS ID? > > I KNOW HOW TO USE THE WHO FUNCTION TO SELECT A PARTICULAR TURTLE BUT I DO NOT KNOW HOW TO ASK THE TURTLE TO GIVE ME ID. > > THE DICTIONARY SAYS: " > YOU CAN USE THE TURTLE REPORTER TO RETRIEVE A TURTLE WITH A GIVEN &GT; WHO NUMBER" BUT I CANNOT FIND OUT HOW TO DO IT FROM THE CODE >; HI MANUEL - YOU SHOULD PROBABLY TAKE A LOOK AT THE VARIABLES SECTION OF THE PROGRAMMING GUIDE: HTTP://CCL.NORTHWES TERN.EDU/ NETLOGO/DOCS/ PROGRAMMING. HTML#VARIABLES TURTLES CAN ACCESS THEIR OWN VARIABLES DIRECTLY, FOR EXAMPLE. ASK TURTLES[ PRINT WHO ] WILL PRINT THE WHO NUMBERS OF ALL THE TURTLES TO THE COMMAND CENTER. THE OBSERVER CAN ACCESS TURTLE VARIABLES USING OF, FOR EXAMPLE: PRINT [WHO] OF TURTLE 0 WILL PRINT '0' TO THE COMMAND CENTER. HOPE THIS HELPS. ESTHER

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