21.2.1 CODE

[BUNDLES\]COMBINE OutCube CODE In1 In2 [Off] [/FACTOR A1 A2] [/THRESHOLD T1 T2] [/BLANKING Bval]

CODE is the operation code. Allowed values are

 ADD      or PLUS    OutCube = A1*In1 + A2*In2 + Off
 SUBTRACT or MINUS   OutCube = A1*In1 - A2*In2 + Off
 DIVIDE   or OVER    OutCube = A1*In1 / A2*In2 + Off
 MULTIPLY or TIMES   OutCube = A1*In1 * A2*In2 + Off
 OPACITY             OutCube = -Log( A1*In1 / A2*In2 + Off)
 INDEX               OutCube = Log( A1*In1 / A2*In2) / Log(Nu1/Nu2)

where Nu1 is the Frequency of In1, and Nu2 that of In2. Off is 0 if not specified.