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...6 months school; 24 further education; etc. After looking through available resources my solution is quite complex involving – amongst other things a series of loops. I’m sure there is a quicker and simpler way (manipulating table or xtabs) but I just can’t see how to do it. Any advice? Michael Anyadike-Danes [[alternative HTML version deleted]]

...ked Warning: cannot remove prior installation of package 'lattice' updating HTML package descriptions > library(lattice) Error in library(lattice) : there is no package called 'lattice' Have I missed something? Apologies if it is something really obvious. Michael Anyadike-Danes Economic Research Institute of Northern Ireland Floral Buildings 2-14 East Bridge Street Belfast BT1 3NQ Tel: (028) 90727362 Fax: (028) 90319003 [[alternative HTML version deleted]]

...of a 3-by3. I thought I might be able to use "diag" to add zeros but apparently not. It's a problem because my matrix is actually 1989-by-1989 not 4-by-4 I would not be at all surprised if the solution is obvious but I cannot quite see how to read this into R. Michael Anyadike-Danes Economic Research Institute of Northern Ireland [[alternative HTML version deleted]]

...able to get it to work.. 1. is this a feasible approach? 2. if not advice would be welcome. 3. Equally, advice about a better approach would also be v. welcome. I haven't included the data because my failed attempt is data-independent (and probably more basic). Michael Anyadike-Danes ############# show that read.xls works > test <- read.xls("Book1.xls",sheet=1,from=4,colClasses="numeric") > str(test) 'data.frame': 23 obs. of 13 variables: $ Off.Flows..Thousands.: num 117.19 NaN NA 1.43 2.26 ... $ Off.Flows....