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st: RE: complicated scatterplot with connected points
From
Nick Cox <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
st: RE: complicated scatterplot with connected points
Date
Fri, 3 Dec 2010 17:44:46 +0000
There are various approaches to this. One is to restructure your data so that the graphics command becomes easier.
preserve
reshape long x y, i(city)
Spelling is Stata.
Nick
[email protected]
Gisella Young
I want to draw a slightly complex scatterplot in STATA and have not been able to find a way how. For each city I have 3 points (each with a x- and y-coordinate) for 3 different years. I can use the -twoway- graphics command to do three overlaid scatterplots so that each city has 3 points, one for each year. The tricky part: to CONNECT (with a line) the three points for each city, so as to trace its path over time.
The command I am using at the moment, for the basic scatterplot without connecting lines, is:
twoway (scatter x y1, sort mlabel(city1)) (scatter x2 y2, sort mlabel(city2)) (scatter x3 y3, sort mlabel(city3))
My data has the following structure:
city x1 y1 x2 y2 x3 y3 city1 city2 city3
Portland 34 64 23 78 54 67 Portland1 Portland2 Portland3
Chicago 53 72 33 52 91 77 Chicago1 Chicago2 Chicago3
Boston etc
I would greatly appreciate any suggestions. Thank you!
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