I think one quick and dirty way of doing this may involve reshaping the
data:
/*this step converts the variables score and year from string to numeric,
so if they were not strings it is unnecessary*/
destring score, replace;
destring year, replace;
/* This step will convert the data assuming that country is a string. If
not, omit string at the end of the command*/
reshape wide score, i(year) j(country) string;
/* This step is here because I am lazy. If you have a lot of countries, it
will save you some typing */
local list score*;
unab list: `list';
local graph "";
#delimit cr
foreach var of varlist `list' {
local graph "`graph' (line `var' year, sort) "
}
/* graphs the scores */
twoway `graph'
I think this should work.
DVM
_______________________________________________________________________________
Dimitriy V. Masterov
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Center for Social Program Evaluation
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