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From |
"b. water" <barleywater@hotmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
RE: st: Sort order in graph box, over() by() |

Date |
Wed, 29 Aug 2007 14:47:48 +0000 |

dear all,

i was just trying to learn from this post with my stata 8.2 but got stuck on egen axis i.e.:

. egen axis = axis(median rep78), label(rep78)

unrecognized command: _gaxis

r(199);

is there a stata 8.2 equivalent for egen axis = axis(varlists) to show what nick cox's trying to achieve here?

thank you,

bw

----Original Message Follows----

From: "Nick Cox" <n.j.cox@durham.ac.uk>

Reply-To: statalist@hsphsun2.harvard.edu

To: <statalist@hsphsun2.harvard.edu>

Subject: RE: st: Sort order in graph box, over() by()

Date: Tue, 28 Aug 2007 13:36:56 +0100

I think Scott's main idea is right. To solve this, you

need to create your own grouping variable upstream of

the graph call.

Here's another way to do it, however, that doesn't

involve resorting to monkeying with extra observations

ad hoc.

sysuse auto, clear

egen median = median(mpg), by(rep)

egen axis = axis(median rep78), label(rep78)

graph box mpg, over(axis) by(foreign, b1title(Repair record 1978))

Here you need to have installed -egenmore- from SSC to get -egen, axis()-.

I have posted on this unofficial -egen- function before, so

here are some related postings:

www.stata.com/statalist/archive/2004-03/msg00454.html

www.stata.com/statalist/archive/2007-07/msg00563.html

www.stata.com/statalist/archive/2004-02/msg00485.html

www.stata.com/statalist/archive/2007-08/msg00562.html

If StataCorp would only add one option to -egen, group()-

none of this would be necessary!

I have bundled in the example above an extra trick.

-graph box- won't let you use an -xtitle()-

in this kind of graph because of -graph-'s dogma

that the axis in question isn't an x-axis. A

solution is to invoke -b1title()-.

Those using graphics in Stata <=7 may remember

that graph axis titles came in various flavours,

being -l-, -r-, -b- or -t- according to whether

they were on the left, right, bottom or top.

It doesn't seem to be documented, but some of

the associated options still persist in the new

graphics, chiefly to allow Vince Wiggins a few

extra handles for the very few occasions that he needs them.

Nick

n.j.cox@durham.ac.uk

Scott Merryman

> Like this?

>

> sysuse auto ,clear

> egen median = median(mpg) ,by(rep)

> graph box mpg, over(rep, sort(med)) by(fore) name(gr1,replace)

> set obs 76

> replace fore = 1 in 75/76

> replace rep = 1 in 75

> replace rep = 2 in 76

> replace med = 18 if rep == 2 & fore == 1

> replace med = 20 if rep == 1 & fore == 1

> graph box mpg, over(rep, sort(med)) by(fore) name(gr2,replace)

On 8/27/07, Stefan Kreisel <kreisel.stefan@web.de> wrote:

> > I'll give it another (abbreviated, as suggested in the

> Statalist FAQ...) try after receiving no response to "Forcing

> sort order in graph box, over() by()" (see that thread for

> any details).

> >

> > Is there a way to individually sort the order of boxes in a

> given subgraph as produced by the by() option in e.g. -graph

> box yvar, over(xvar, sort(1)) by(anothergroup)-?

> >

> > The problem is that missing categories on a given

> subgrouping of by() get put on the far right most side of the

> subgraph; I want them all in the same position in each subgraph.

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**Follow-Ups**:**RE: st: Sort order in graph box, over() by()***From:*Ulrich Kohler <kohler@wzb.eu>

**References**:**RE: st: Sort order in graph box, over() by()***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

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