# NOT RUN {
string="(a1+a3*age.mean)*(b1+b3*age.mean)"
string="(a1+a3*skeptic.mean)*(b1+b2*skeptic.mean+b4*Z.mean)"
string="(a1+a3*age.mean)*(b)"
string="(a1+a3*4.12)*(b)"
string="(a)*(b)"
extractIMM(string)
# }
Run the code above in your browser using DataLab