Lisp: How do I count the items in a list?

[ajs]

Can anyone tell me the syntax on how to obtain the amount of items that are in a particular list?

 

Something to the effect of:

 

(setq MyListLength (Quantity MyList)) wherein "Quantity" is the function that obtains the total amount of the components that make up MyList.

 

I typically have a list that stores various coordinates and I need to know how many coordinates the list is holding at any given time.

 

MyList:

 

((168.000 2.00000 0.000000) (68.0000 2.00000 0.000000) (68.0000 26.0000 0.000000) (69.0000 26.0000 0.000000))

 

So in this case, I'd be looking for the count to be 4.

 

 

Any help would be appreciated.

 

---Thanks

[jammie]

Hey ajs,

 

You are actually very close. Just use the length function

 

(setq MyListLength (length MyList))

 

Regards

 

Jammie

[ajs]

Thanks for the tip. I don't know why I didn't think of trying 'length"

 

---AJS

[jammie]

Your welcome, glad I could be of some assistance

 

-Jammie