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Re: st: hbar graph & colour


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: hbar graph & colour
Date   Sun, 20 Feb 2011 09:02:01 +0000

Please think again. A fair fraction of the population is red-green
colour-blind.

I suggest looking at e.g http://colorbrewer2.org/ and selecting a
scheme that is more sensitive and is consistent with your other
desiderata. Otherwise how about

clear
input country   gdp   colour
1  100    1
2  110    2
3  240    3
4  50     1
5  10     1
end
graph hbar  gdp, asyvars over(colour) over(country, sort( gdp) descending) ///
bar(1, color(blue)) bar(2, color(orange)) bar(3, color(pink)) nofill

Even greater flexibility is given by recasting the problem as one for
-twoway bar-.

Nick

On Sun, Feb 20, 2011 at 1:57 AM, María Edo <mariaedo@gmail.com> wrote:
> Hello,
>
> I need to construct a horizontal bar graph using three colours: two
> different colours to highlight two particular bars (say, red and
> green) and one colour for the rest of the bars (say, blue).
>
> So far, I have managed to get two colours in the graph by using the
> -over- option:
>
> input country   gdp   flag1 flag2
> 1  100    0       0
> 2  110    0       1
> 3  240    1       0
> 4  50     0       0
> 5  10     0       0
> end
> graph hbar  gdp, asyvars over(flag1) over(country, sort( gdp)
> descending) bar(1, color(blue)) bar(2, color(red)) stack
>
> To get the graph I need, country "2" should appear in green.
>
> I am sure there is a trivial way of achieving this, but I haven't been
> able to find it.

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