search for: kurtin

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2012 Jan 30
2
handling a lot of data
...mmands: data1993 = vector("list", 4); data1993[[1]] = read.spss(...) # first trimester data1993[[2]] = read.spss(...) # second trimester ... data_all = vector("list", 17); data_all[[1993]] = data1993; ... and indexing, e.g.: data_all[[1993]][[1]]$DISTRICT, etc. Thanks, Petr Kurtin