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Beginner Joined: 30 Jul 2010 Posts: 19

I am writing a script which requires a 2-dimensional array.

I need to be able to populate a matrix in zmud using x1,y1 x1,y2 etc

However, so far I've only been able to figure out how to make a single array for a variable

#VAR Xvar {x1|x2|x3}
#VAR Yvar {y1|y2|y3}

I need to make

x1y1|x2y1|x3y1
x1y2|x2y2|x3y2

anyone know how to do this in zmud?

GURU Joined: 23 Dec 2000 Posts: 4834 Location: USA

There are at least two options for you:

1)nested stringlists. Stringlists are in the form of "item1|item2|itemN". In nested stringlists, each item itself is another stringlist and is surrounded by parentheses--"(item1|item2|item3)|(item4|item5|item6)|(itemN|itemO|itemP)". Powerful, but not exactly easy to read.

2)datarecord variables. Essentially, they are stringlists where each item consists of a key=value pair. NOTE: they are NOT identical to stringlists internally, so you cannot use string functions (such as the %concat() function) to put a datarecord variable together. In the case of a 2-dimensional array, the keys would be one axis and the values would be the other. You would then use normal stringlist commands and functions to interact with the specific array element you wanted to get to.

Beginner Joined: 30 Jul 2010 Posts: 19

Thanks! For what I need, I don't need it to be easy to read so I think I'm going to go with the nested stringlist.

So my next question is, if I need to get to the 15th item in the 1st slot, how would I access that value?

#VAR itemmatrix {(item1|item2...|item15|item16)|(item1|....)}
would I get it with

%item( @itemmatrix, 1, 15)

I just made that up as a guess... How do I access the specific values?

Posted: Sat Jul 31, 2010 7:13 am

Close, but you'd use %item(%item(@itemmatrix, 1), 15).

Charneus

Beginner Joined: 30 Jul 2010 Posts: 19

thanks! I managed to almost finish what I was working on. I hit one last snag though...

How do I change values in that nested string. I am able to use loops to print the matrix to my screen and it works great, but how do I change a single value inside the matrix?

Beginner Joined: 30 Jul 2010 Posts: 19

if I have a matrix that looks like this

x x x x
x x y x
x x x x

how do I change the y to an x using a trigger?

GURU Joined: 23 Dec 2000 Posts: 4834 Location: USA

%replaceitem(%replaceitem("x",3,@mylist.2),2,@mylist)

You might need to replace @mylist.2 with %item(@mylist,2), since I forget if the former works in ZMud.

EDIT: in the future, do not spam the forums with multiple threads on the same topic in the same day (or for that matter, within the span of a day or two).