ChartDirector Ver 3.1 (PHP Edition Edition)
ArrayMath
.delta
Usage
delta(offset)
Description
Subtract each element of the ArrayMath object by an earlier element in the same ArrayMath object.
Arguments
Argument
Default
Description
offset
1
The difference in position between an element and the earlier element to be subtracted from it.
Return Value
The current ArrayMath object.
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