The vertical factor parameters have not been correctly defined. Vertical factor parameters define the relationship between the vertical cost factor and the vertical relative moving angle (VRMA). The parameters are composed of a keyword specifying an existing graph or table for a custom graph created from an ASCII file and modifiers. The keyword parameter and modifiers need to be in quotes. Spaces must separate the keyword and modifiers. The format for vertical parameter modifiers is modifier_name=value. Valid vertical keywords are BINARY, LINEAR, SYM_LINEAR, SYM_INVERSE_LINEAR, COS, SEC, COS-SEC, SEC-COS, and TABLE. Valid vertical factor modifiers to the keywords are ZEROFACTOR, LCUTANGLE, HCUTANGLE, SLOPE, and table_name. For example, a valid vertical factor parameter is "LINEAR SLOPE=0.0111".
- Make sure a keyword identifying the vertical factor table is specified.
- If TABLE is specified, make sure that an input vertical factor table has been identified.
- When a modifier has been entered, make sure that it is followed by the equal sign and a valid value.