* Box-Cox transformation for all 31 values of lambda between -2 to 1 (increments of .1). * Raynald Levesque 2003/11/08. GET FILE='c:\\program files\\spss\\employee data.sav'. COMPUTE var1=salary. VECTOR lam(31) /xl(31). LOOP idx=1 TO 31. - COMPUTE lam(idx)=-2.1 + idx * .1. - DO IF lam(idx)=0. - COMPUTE xl(idx)=LN(var1). - ELSE. - COMPUTE xl(idx)=(var1**lam(idx) - 1)/lam(idx). - END IF. END LOOP. EXECUTE.