search for: delta_ec01

...9 NA M2 2007 EC02 6 10 I'm trying to build the time series of the variables by applying the following formulas in a recursive way(by starting from the value of R_pivot at time 2007) R_EC01(2006)=R_EC01(2007)-Delta_EC01(2007) R_EC01(2005)=R_EC01(2006)-Delta_EC01(2006) In terms of number I would have: R_EC01(2006)=5-4=1 R_eco1(2005)=1-2=-1 And the same should be done for variable EC02. In addition, this calculations should be down grouping by variable e cluster..so the result should be CLUSTER YEAR va...