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Re: st: tmap question


From   "scott hankins" <scott.hankins@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: tmap question
Date   Mon, 2 Oct 2006 15:17:20 -0400

It has been a while but, I think that anything you use to 'label' your
plots has to be a string.


hope this helps

scott


On 10/2/06, Scott Cunningham <scunning@gmail.com> wrote:
I'm using tmap 2.0 and had a question about the addplot() command.  I
have a variable called "sr" which is the ratio of women to men at the
United States state level.  I would like to have added to the map the
abbreviation for each of the United States states.  I appear to be
having trouble with the xplot and yplot syntax within addplot.  For
instance, here is the simple map I've made without the addplot.

tmap choropleth sr if id!=13 & id!=56, id(id) map(uscoord.dta) palette
(Blues) title(`"`"Sex Ratios for 18-24 year-olds, 2000"'"') subtitle
("White Americans")

I would like to now add the state abbreviation to the map, making it
easier to interpret.  I'm reading a user guide written by Maurizio
Pisati, and he writes that addplot requires the x- and y-coordinates
of the variable name.  Contained in uscoord.dta are 3 variables:
_ID, _X and _Y.  So I type the following:

tmap choropleth sr if id!=13 & id!=56, id(id) map(uscoord.dta) palette
(Blues) title(`"`"Sex Ratios for 18-24 year-olds, 2000"'"') subtitle
("White Americans") addplot(label sr if id!=13 & id!=56, x(X) y(Y))

But this elicits an error, saying that the syntax for addplot is
incorrect.  I am assuming that the problem lies with the use of the
x- and y-coordinates.  And reading through Dr. Pisati's user guide
more closely, I notice in an example that his x- and y-coordinates
appear to be in the main using file - not in his coordinates file.

Here's the variables I have for me main file:

STATE
NAME
FIPS
LON
LAT
id
fip
sr

Any help is appreciated.
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