Hi there, Thank you in advance for your help.
I need to do the following: 1. Take one file from excell and one from SPSS and with the data calculate: ESTIMATED N= SUM {1/PI(i)}; PI is the proportion ESTIMATED T(Y)= SUM {Yi/PI(i)}; i belongs to the sample. GINMi=[SUMi{(Yi/PI(i))*[1/PI(i)+SUMj(2/PI(j)]}]/[(2*ESTIMATED N*ESTIMATED T)]. i belongs to M (1000,etc.) times, WHERE j=i+1 WE HAVE ONLY ONE VARIABLE Y, BUT WITH THE FIRST POSITION i AND THE NEXT j, IN THE ASCENDING ORDER. And last to get the errors as: E1= [SUMi {|GINP-GINMi |}]/[M] ; i belongs M E2= SQRT[SUMi {|GINP-GINMi |}]/[M]; i belongs TO M Thanks, Cesar Ortega ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help