If flt.zero_freeze is 1.0 or more, the FLT mask will be frozen after the specified number of iterations (the nearest integer value is used). Note, any initial iterations specified by parameter "ast.skip" are not included in the count of iterations. If flt.zero_freeze is greater than zero but less than 1.0, the FLT mask will be frozen when the normalized change in the map between iterations drops below the flt.zero_freeze value. A value less than zero means that the mask is frozen as soon as the initial iterations specified by parameter "ast.skip" have been done. A value equal to zero means that the mask is never frozen. [0.0]

MAKEMAP, CALCQU