sflistminmax (2.0-git)
Construct incremental minimum or maximum lists from an RSF file.

        sflistminmax < in.rsf > out.rsf mode=

Constructs the following set of minimum or maximum lists for each
x2, x3, ... xn in the input RSF file:

out[0] = in[0]
out[i] = min or max of (in[i], out[i-1]) for i = 1, 2, 3, ... n1

The input file data type must be float.
The output file data type will be float.

sflistminmax mode=min, can be used to simulate "erosion" for a set of
geological surfaces, producing a new set of surfaces that do not cross.

See also: sfminmax, sfstack.

string mode=
'min' (default) or 'max'