Generating scatter graphs with connected line for minimum / maximum values and multiple categories

[Konrad Zdeb]

Colleagues,

I'm interested in generating the following graphics:

I'm more interested in the second one, showing multiple categories. Naturally, I will appreciate any suggestion on how this can be achieved.

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Source: The Economist: 1) Invisible fuel; 2) Getting ‘em young

[Maarten Buis]

The graphs don't show, so I find it hard to comment.

[Konrad Zdeb]

Marteen,

Thanks, it happened in past once. I think they will come back, there is some lag with uploading the pictures to the board. They show on mine desktop.

[Konrad Zdeb]

Attaching as photos

[Svend Juul]

There is a number of useful range plots. Take a look at:

help twoway rcap
help twoway rcapsym
help twoway rspike

[Nick Cox]

Credit to The Economist, I think.

As Svend says, these plots yield to twoway. Various discussions around the subject in http://www.stata-journal.com/sjpdf.h...iclenum=gr0034 and http://www.stata-journal.com/sjpdf.h...iclenum=gr0039

[Konrad Zdeb]

Thanks, I think that twoway rcapsym, is what I need. In effect, it will be just a matter of collapsing the data set accordingly.

[Konrad Zdeb]

Just more question, how to get rid of the gaps at the end of the line:

collapse (min) var1 (max) var2, by(group)
gen pipe = "|"
twoway rcapsym var1 var2 simddeciles,  ///
    horizontal scheme(tufte) ///
    msymbol(none) mlabel(pipe) ///
    name(complete_minmax, replace)

[Oded Mcdossi]

Konard, just use the -rcap- instead of rcapsym, and remove the options for msymbol(none) mlabel(pipe)

[Nick Cox]

I wouldn't use pipes here. I would use an rcap from itself to itself.

sysuse auto, clear
set scheme s1color
keep if foreign
sort mpg
gen order = _n
labmask order, values(make)
twoway spike mpg order , horizontal base(0) pstyle(p1) yla(1/22, val ang(h) noticks) ///
|| rcap mpg mpg order, horizontal pstyle(p1) xla(0(10)40) legend(off) ytitle("")

[Konrad Zdeb]

Thanks very much for the useful suggestions.

[Nick Cox]

Sorry; I should have explained that labmask is from the Stata Journal. (Second reference in post #6.)

[Konrad Zdeb]

I'm just reading about it, very useful piece of software.