Expression language for functions and rules:
| a == b | equality |
| a != b | inequality |
| a < b | a is less than b |
| a <= b | a is less than or equal to b |
| a > b | a is greater than b |
| a >= b | a is greater than or equal to b |
| a + b | addition |
| a – b | subtraction |
| a * b | multiplication |
| a / b | division |
| a % b | modulo |
| !a | logical negation |
| -a | arithmetic negation |
| a && b | logical conjunction, AND-conjunction |
| a ^ b | logical exclusive disjunction, XOR-disjunction |
| a || b | logical disjunction, OR-disjunction |
| a implies b | logical implication (if a, then b) |
| a <=> b | logical equivalence |
| a * (b + c) | brackets |
| if a then b else c |
distinction of cases (always has to be complete: “if … then …” will not be evaluated!) |
| a@pre | previous value in accordance with the quantization |
| a@pre@pre | penultimate value in accordance with the quantization |
| a@pre(X) | previous value in accordance with chosen parameter: with X = HOUR, DAY, WEEK, MONTH, QUARTER, YEAR |
| a@pre(X)@pre(X) | penultimate value in accordance with chosen parameter: with X = HOUR, DAY, WEEK, MONTH, QUARTER, YEAR |
| a@next | next value in accordance with the quantization |
| a@next@next | next but one value in accordance with the quantization |
| a@next(X) | next value in accordance with chosen parameter: with X = HOUR, DAY, WEEK, MONTH, QUARTER, YEAR |
| a@next(X)@next(X) | next but one value in accordance with chosen parameter: with X = HOUR, DAY, WEEK, MONTH, QUARTER, YEAR |
| dayOfYear() | provides the current day of the year, for example 01.01.2014 provides „1“, 02.01.2014 provides „2“ etc. (no parameter) |
| weekOfYear() | provides the current week of the year, for example 01.01.2014 provides „1“, 06.01.2014 provides „2“ etc. (no parameter) |
| min(a_1; …; a_n) | minimum of a_1 to a_n |
| max(a_1; …; a_n) | maximum of a_1 to a_n |
| exp(a) | e raised to a (e represents a natural number) |
| exp(a; b) | a raised to b (a and b can be numbers, sensors or both mixed) |
| log(a) | common logarithm of a |
| ln(a) | natural logarithm of a |
| sqrt(a) | square root of a |
| abs(a) | absolute value of a |
| avg(a_1; …; a_n) |
average of a_1 to a_n |
| arctan(a) |
arctangent of a |
| /*comment*/ | syntax for the comment-funktion |