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Optional Arguments. `DIM`, `MASK`

Description. Determine the locations of the first elements of `ARRAY`
along dimension `DIM` having the minimum value of the elements identified by `MASK`.

Class. Transformational function.

Arguments.

ARRAY must be of type integer or real. It must not be scalar.

DIM (optional) must be scalar and of type integer with a value in
the range ,
where is the rank of `ARRAY`.
The corresponding actual argument must not be
an optional dummy argument.

MASK (optional) must be of type logical and must be conformable
with `ARRAY`.

Result Type, Type Parameter, and Shape. The result is of type
default integer.
If `DIM` is absent the result is an array of
rank one and size equal to the rank of `ARRAY`; otherwise, the
result is an array of rank and shape , where
is the shape of `ARRAY`.

Result Value.

(i): The result of executing `S = MINLOC(ARRAY) + LBOUND(ARRAY) - 1`
is a rank-one array
`S` of size equal to the rank of `ARRAY`.
It is such that `ARRAY(S(1), ..., S(n))` has the minimum value of
all of the elements of `ARRAY`. If more than one element has the
minimum value, the element whose subscripts are returned is the
first such element, taken in array element order.
If `ARRAY` has size zero, the result is processor dependent.

(ii): The result of executing `S = MINLOC(ARRAY, MASK) +
LBOUND(ARRAY) - 1` is a rank-one array `S` of size
equal to the rank of `ARRAY`. It is such
that `ARRAY(S(1), ..., S(n))` corresponds to a true
element of `MASK`, and has the minimum value of all
such elements of `ARRAY`. If more than one element
has the minimum value, the element whose subscripts are
returned is the first such element, taken in array
element order. If there are no such elements (that is,
if `ARRAY` has size zero or every element of `MASK` has the value false), the result is processor
dependent.

(iii): If `ARRAY` has rank one, the result of `MINLOC(ARRAY, DIM` [`,MASK`]`)` is a scalar
`S` such that `ARRAY(S + LBOUND(ARRAY,1) - 1)`
corresponds to a true element of `MASK` (if `MASK` is present) and has the minimum value of all such
elements (all elements if `MASK` is absent). It is
the smallest such subscript.
Otherwise, the value of element
of
`MINLOC(ARRAY, DIM` [`,MASK`]`)` is equal to
`MINLOC( ARRAY()
[,MASK = MASK()]).`

Examples.

(i): The value of `MINLOC((/ 5, -9, 3 /))` is ,2,, plus 1filll
-1;2,; plus 1filll
-1:2,: plus 1filll
-1.2,. plus 1filll
-12, plus 1filll-1.

(ii): `MINLOC(C, MASK = C .GT. 0)` finds the location of
the first element of `C` that is the minimum of the
positive elements.

(iii): The value of `MINLOC((/ 5, -9, 3 /), DIM=1)` is 2.
If `B` is the array , 1, 3, -9 2, 2, 6 ,, plus 1filll
-1; 1, 3, -9 2, 2, 6 ,; plus 1filll
-1: 1, 3, -9 2, 2, 6 ,: plus 1filll
-1.plus 1filll
1, 3, -9 2, 2, 6 ,.-50 1, 3, -9 2, 2, 6 , plus 1filll-1,
`MINLOC( B, DIM = 1 )` is , 1, 2, 1 ,, plus 1filll
-1; 1, 2, 1 ,; plus 1filll
-1: 1, 2, 1 ,: plus 1filll
-1. 1, 2, 1 ,. plus 1filll
-1 1, 2, 1 , plus 1filll-1 and
`MINLOC( B, DIM = 2 )` is , 3, 1 ,, plus 1filll
-1; 3, 1 ,; plus 1filll
-1: 3, 1 ,: plus 1filll
-1. 3, 1 ,. plus 1filll
-1 3, 1 , plus 1filll-1. Note that
this is true even
if `B` has a declared lower bound other than 1.

Thu Jul 21 17:05:43 CDT 1994