What is let in NetLogo?

What is let in NetLogo?

let creates a new local variable and sets its initial value. A local variable is a variable that only exists within the procedure it was created in or within the brackets of a specific ask statement.

How do I set up NetLogo?

Making the setup button

1. Click the “Add” icon in the toolbar at the top of the Interface tab.
2. On the menu next to Add, select Button (if it isn’t already selected).
3. Click wherever you want the button to appear in the empty white area of the Interface tab.
4. A dialog box for editing the button opens.

How does NetLogo work?

NetLogo allows you to define different “breeds” of turtles and breeds of links. Once you have defined breeds, you can go on and make the different breeds behave differently.

What does pen-down do in NetLogo?

pen-down pen-erase pen-up The turtle changes modes between drawing lines, removing lines or neither. The lines will always be displayed on top of the patches and below the turtles. To change the color of the pen set the color of the turtle using set color .

What does pen down do in NetLogo?

What does MOD mean in NetLogo?

the modulo operation
mod is a mathematics primitive that completes the modulo operation, which takes two numbers, divides them, and returns the remainder. For example, 17 mod 7 would report 3 because $17 = 2 * 7 + 3$. mod is very useful in some interesting NetLogo modeling applications such as creating grids.

Who created NetLogo?

Uri Wilensky
NetLogo

Is NetLogo open source?

NetLogo is an open source, cross-platform tool that enables users to model a wide variety of natural and social phenomena (including biology, chemistry, computer science, economics, physics, psychology, art, and much more).

Is there a tutorial for NetLogo interface?

You’ve even written a series of procedures to give the turtles something to do. That’s where this tutorial leaves off. If you’d like to look at some more documentation about NetLogo, the Interface Guide section of the manual walks you through every element of the NetLogo interface in order and explains its function.

What happens when you press a button in NetLogo?

Pressing the button runs a procedure called “setup”. A procedure is a sequence of NetLogo commands that we assign a new name. We’ll define that procedure soon, but we haven’t yet.

What is the real heart of a NetLogo model?

Now you’re ready to learn about the real heart of a NetLogo model: the Code tab. You’ve seen that agents in NetLogo are divided into patches, turtles, links, and the observer. Patches are stationary and arranged in a grid. Turtles move over that grid. Links connect two turtles.

What is the hatch command in NetLogo?

The hatch command is a NetLogo primitive which looks like this: hatch number [ commands ]. This turtle creates number new turtles, each identical to its parent, and asks the new turtle (s) that have been hatched to run commands.