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v_63
2005 Jul 17
1
Strange problems with lattice plots
...lattice plots and have stuck in strange problems.
I have a data frame of 405 rows:
> str(dframe)
`data.frame': 405 obs. of 4 variables:
$ year : num 1990 1990 1990 1990 1990 1990 1990 1990 1990 1990 ...
$ month: num 1 2 3 4 5 6 7 8 9 10 ...
$ V_A2 : num NA NA NA NA NA ...
$ V_A3 : num NA NA NA NA NA ...
Variable month changes from 1 to 27 as the data frame includes monthly
measurements and some aggregations of them.
Variable year varies from 1990 to 2004.
Variables V_A2 and V_A3 contain floating point values and several NAs (as
sometimes measurements were unavailable)....