Type = Real

Default = 0.0

The LOWVALU parameter can be used to override the lower bound on non-zero entries of the estimated OD matrix. When set to a positive value, any entries of the estimated OD matrix that are less than LOWVALU will be set to LOWVALU. If LOWVALU is set to any negative value then the program will instead set LOWVALU to use the smallest non-zero input OD matrix value. This parameter can be useful in preventing the zeroing of small matrix entries due to loss of precision.