sddspoly <inputfile> <outputfile> -evaluate=filename=<polyFilename>,output=y,coefficients=coef,input0=x,power0=power
sddspoly [inputfile] [outputfile] [-pipe=[input][,output]]
-evaluate=filename=polyFilename,output=column,coefficients=column,
input0=inputColumn,power0=powerColumn
[,input1=inputColumn,power1=polyColumn][,...]
[-evaluate=...]