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Re: st: how to get a line (or scatter)graph alike the linkplot of Nick Cox?


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: how to get a line (or scatter)graph alike the linkplot of Nick Cox?
Date   Fri, 6 Jan 2012 15:15:09 +0000

Sorry, but I don't understand the question. If -linkplot- (SSC) gives
you what you want, what are you missing?

-linkplot- is in my view not especially suitable as a  candidate for a
-twoway- plottype, but that is immaterial, as you can combine it with
other plottypes using its -plot()- option. (Works like -addplot()- for
those with Stata 9 up.)

Anyone new to -linkplot- could also look at

SJ-4-3  gr0005  . . . . .  Speaking Stata: Graphing agreement and disagreement
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  N. J. Cox
        Q3/04   SJ 4(3):329--349                                 (no commands)
        how to select the right graph to portray comparison or
        assessment of agreement or disagreement between data
        measured on identical scales

Nick

2012/1/6 José Maria Pacheco de Souza <jmpsouza@usp.br>:

> I need to get a line (or scatter) plot where lines of different individuals
> do not  connect, even when the first time of observation of one starts after
> the end of another.
> The small data set bellow and the commands show what I would like to
> get,using -linkplot- written by Nick Cox and what I would not want to get,
> using either line or scatter. The lines for individuals id=76 and id=137
> *should be two separated lines*.
>
> id             age              zpi
> 27                8             -.4003515
> 27              12              .7188796
> 27      16              -.0958611
> 27              20              .0375383
> 27              24              .2878524
> 76              7               -.6242654
> 76              11              .3159339
> 137             17              -.6290992
> 137             21              -.2678947
> 436             10              .0439807
> 436             13              -.6680512
> 436             17              -.7185947
> 436             21              -1.088822
>
> (Stata 10, same results for Stata12. Operational system Windows7 32 bits)
>
> linkplot zpi age,link(id) mlabel(id)
>
> scatter   zpi age,sort(  id  age) con(ascending) mlabel(id)
> line   zpi age,sort(  id  age) con(ascending)
>
> By the way, is it possible to make -linkplot- a twoway plottype?

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