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- SubArray
- Subarray of an array or a list.
- Usage
- SubArray(array, i, j)
SubArray(array, i)
- Arguments
- array (ARRAY(T)). T is any type. If the argument is Undef, returns Undef
i, j (INT). Define the bounds (minimum and maximum index in array) of the subarray. For syntax SubArray(array,i,j), i must be positive, non null and j must be greater than i. For syntax SubArray(array,i), i must be non null, but can have a negative value.
- Returned Object
- If array has type ARRAY(T), the function returns an element of type ARRAY(T). If one of the arguments is Undef, returns Undef
- Description
- SubArray(array,i,j) returns the array made of the element of array that have a position between i and j. The elements of the resulting array are in the same order as in array. Let us denote array
 . Then syntax returns the subarray  . If j >n then the result is the subarray  .
Syntax SubArray(array,i) returns the first i element of array if i>0 and the last i elements if i<0. If Abs(i)>n, then the entire array array is returned.
- See Also
-
Array,
List,
Pos,
At,
Head,
Tail,
ValueSelect.
Examples
AML>SubArray([10,11,12,13,14,15],2,4)
<ARRAY(INT)> [11,12,13]
AML> SubArray([10,11,12,13,14,15],2,18)
<ARRAY(INT)> [11,12,13,14,15]
AML> SubArray([[1,2],[3,4,5],Undef,[7],[8,9,10]],3)
<ARRAY(ARRAY(INT))>[[1,2],[3,4,5],Undef]
AML> SubArray([[1,2],[3,4,5],Undef,[7],[8,9,10]],-2)
<ARRAY(ARRAY(INT))>[[7],[8,9,10]]
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