Campbell CR3000 Micrologger, Operator'S Manual

Page: 194 / 644

Section 7. Installation
194
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Mathematical
•
Logical
Examples include:
•
Process a variable array without use of For/Next
•
Create boolean arrays based on comparisons with another array or a
scalar variable
•
Copy a dimension to a new location
•
Perform logical operations for each element in a dimension using scalar
or similarly located elements in different arrays and dimensions
Note Array-assigned expression notation is an alternative to For/Next
instructions that can be used by advanced programmers. It will probably
not reduce processing time significantly over the use of For/Next. To
reduce processing time, consider using the Move() instruction, which
requires even more intensive programming.
Syntax rules:
•
Definitions:
o Least-significant dimension — the last or right-most figure in an
array index. For example, in the array array(a,b), b is the least-
significant dimension index. In the array array(a,b,c), c is least
significant.
o
Negate — place a negative or minus sign (-) before the array index.
For example, when negating the least-significant dimension in
array(a,b,c), the notion is array(a,b,-c)
•
An empty set of parentheses designates an array-assigned expression.
For example, reference array() or array(a,b,c)().
•
Only one dimension of the array is operated on at a time.
•
To select the dimension to be operated on, negate the dimension of index
of interest.
•
Operations will not cross dimensions. An operation begins at the
specified starting point and continues to one of the following:
o End of the dimension
o
Where the dimension is specified by a negative
o
Where the dimension is the least significant (default)