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{algorithm duration} [ operator {function} ]
Each algorithm must be given between the "{ }" brackets. The operator
and function are part of the command but are optional. If present, the
results of the command will be operated on by the given function.
Duration can be specified in two ways:
description   algo        syntax
___________   __     _________________________________
sequence      sq     {sq val1 val2 val3....duration(s)}
line          li     {li min max duration(s)}
exponential   lo     {lo min max duration(s)} 
tendency mask ma     {ma f/i min1 min2 max1 max2 duration(s)}
graph         gr     {gr name_of_graph duration(s)}