Kawasaki AS - Get sub array from array

    Hi all,

    I have been stuck on this for some time now. It seems to be a very trivial thing but can't find a solution to it.

    How do I extract a subarray from an array?

    Suppose I have a two-dimensional array called array_var, how do I get the subarray array_var[0:3,1:2]?

    I tried to go through the AS manual but could not find anything...

    Thank you in advance for your help.

  • Go to Best Answer

  • panic mode June 8, 2023 at 1:43 PM

    Approved the thread.

    Hi kwakisaki

    Thank you very much as usual for your prompt answer.

    I didn't actually undestand how to get a sub array. What you seem to show me is getting individual elements of an array, right?

    For example, if I have an array with 5 elements and I want to create another array containing elements from 3 to 5, how can I do?

    If I do array[2:4] it gives me P0119: Incorrect array suffix error.

    Thanks again in advance.

    AS Language does not support sub arrays. You should use FOR loop for this task.

    Arrays in AS are not arrays in common case, like arrays in Python or C++. It's more like syntax sugar. For example, command var[222] = 1 is valid and only var[222] variable is created. var[0] to var[221] will still be nonexistent

    • Best Answer

    Yes, this is AS Language not any other language.

    Quote from dhindhimathai

    For example, if I have an array with 5 elements and I want to create another array containing elements from 3 to 5, how can I do?

    If you lets say have:

    POINT test[0] = HERE

    You have now declared to the controller that variable name test in the location register is now referenced as a single dimension array and just contains 1 element.

    Therefore you have:

    - Defined an array in the location register with the variable name.

    - Defined 1 dimensional element to that array variable.

    - Defined a variable name and declared it as an array but you with no range of elements

    - This variable name can only be referenced by way test[element no.] and not test.

    So if you wanted to define an array of 10 elements with a range of 0-9 you would simply have:

    FOR .tmp 0 TO 9

    POINT pos[.tmp] = HERE

    END

    Quote from dhindhimathai

    For example, if I have an array with 5 elements and I want to create another array containing elements from 3 to 5, how can I do?

    You may want to look into MININDEX and MAXINDEX for assistance in your process of extracting/returning information on arrays and elements.

    What dm.bogachev mentioned is exactly correct.

    Quote from dm.bogachev

    For example, command var[222] = 1 is valid and only var[222] variable is created. var[0] to var[221] will still be nonexistent

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