Dear Contributors, I have a problem with a database composed of many individuals for many periods, for which I need to perform a manipulation of data as follows. Here I report the procedure I need to do for the first 32 observations of the first period.
cbind(VB1d[,1],s1id[,1]) [,1] [,2] [1,] 6 8 [2,] 9 5 [3,] NA 1 [4,] 5 6 [5,] NA 7 [6,] NA 2 [7,] 4 4 [8,] 2 7 [9,] 2 7 [10,] NA 3 [11,] NA 2 [12,] NA 4 [13,] 5 6 [14,] 9 5 [15,] NA 5 [16,] NA 6 [17,] 10 3 [18,] 7 2 [19,] 2 1 [20,] NA 7 [21,] 7 2 [22,] NA 8 [23,] NA 4 [24,] NA 5 [25,] NA 6 [26,] 2 1 [27,] 4 4 [28,] 6 8 [29,] 10 3 [30,] NA 3 [31,] NA 8 [32,] NA 1 In column s1id, I have numbers from 1 to 8, which are the id of 8 groups , randomly mixed in the larger group of 32. For each group, I want the value that is reported for only to group members, to all the four group members. For example, value 8 in first row , second column, is group 8. The value for group 8 of the variable VB1d is 6. At row 28, again for s1id equal to 8, I have 6. But in row 22, the value 8 of the second variable, reports a value NA. in each group is the same, only two values have the correct number, the other two are NA. I need that each group, identified by the values of the variable S1id, correctly report the number of variable VB1d that is present for just two group members. I hope my explanation is acceptable. The task appears complex to me right now, especially because I will need to multiply this procedure for x12x14 similar databases. Anyone has ever encountered a similar problem? Thanks in advance for any help provided. ---------------------------------- Francesca Pancotto Associate Professor Political Economy University of Modena, Largo Santa Eufemia, 19, Modena Office Phone: +39 0522 523264 Web: *https://sites.google.com/view/francescapancotto/home <https://sites.google.com/view/francescapancotto/home>* ---------------------------------- [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide https://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.