macro pseudof2d v/cr q2(47) R | Q2 v/cr beta(47) R | beta v/cr xpom(47) R | xpom = x / beta v/cr xpsig(47) R | xpom.sigma_r v/cr stater(47) R | Percentage statistical error v/cr toter(47) R | Percentage total error v/read q2,beta,xpom,xpsig,stater,toter f2d.txt sigma stat=stater*xpsig/100. | Absolute statistical error on xpom.sigma_r sigma tot=toter*xpsig/100. | Absolute total error on xpom.sigma_r return