Dan
If you have a two-way or three-way table, then, respectively, tab2way and
tab3way give whatever combination you wish of frequencies, row, column and
cell percents. These can be downloaded from the ssc archive and may, after
a bit of cutting and pasting, help achieve your objective.
Opinion piece follows, bail out now if your time is precious.....
As I think Nick Cox has pointed out recently, Stata's tabulation facilities
are somewhat scattered and it can be difficult to find exactly what you
want among the myriad of official and unofficial commands. My own opinion
is that, usually, user-written add-ons are a *very* good thing and add
immeasurably to Stata's functionality. But tabulation is such a basic and
important tool that a more unified system is needed. Many of us have
written front-ends to _tabdisp for particular functions that -table- does
not support, but (i) _tabdisp itself is limited and (ii) there is no
unified <command/subcommand/option> construct to allow a reasonable choice
of presentations of tabular material. (One has in mind the v8 graphics
subsystem - complex, admittedly, but now allows a deal of control over the
end-product). In Dan's example below, what we have is essentially a
collection of Rx2 subtables appended, that is, we have a sex X smoker
table then an age group X smoker table and then perhaps other
subtables. This is often the format given as "Table 1" of a published
paper wherein the baseline characteristics of two or more groups are
displayed. Stata can produce the subtables, but (I think) not the
end-product, because Stata's tables are all about complete
cross-classifications,whereas the display we want here has
cross-classifications within a subtable but not between subtables.
In summary I can imagine a tabulation subsystem in Stata that supports a
user-defined output - contents and layout - for presentation. Imagination
is, of course, cheap.
Phil
At 12:58 PM 7/10/2003 -0700, you wrote:
Hi,
I need to create a table which contains percent of row total and frequency.
I've been looking through table and tabdisp and haven't figured it out.
The table I am looking for is very similar to the following. From
http://www.biomedcentral.com/1472-6963/3/4/table/T1
------------------------------------------------------------
Characteristics of diabetic subjects according smoking status. Figures are
frequencies (percent of row total).
Never smoked (968) Current smoker (296)
Ex-smoker (582) All
Sex Men 374 (40) 166 (18)
361 (39) 928
Women 594 (61) 130 (13)
221 (23) 971
Age Group (Years)
< 45 117 (53) 60 (27)
42 (19) 219
45-54 126 (57) 49 (22)
45 (20) 221
55-64 281 (54) 78 (15)
151 (29) 520
65-74 263 (47) 78 (14)
200 (36) 556
? 75 158 (48) 25 (8)
134 (41) 326
Not known 23 (40) 6 (11) 10
(18) 57
------------------------------------------------------------
Thanks for your help!
Dan
____________________________________________
Daniel R. Sabath M.Sc. Research Consultant
Dept. of Surgery 325 Ninth Ave
Harborview Injury Prevention Box 359960
and Research Center Seattle, WA 98104
[email protected] (206) 521-1549
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Philip Ryan
Associate Professor,
Department of Public Health
Associate Dean (Information Technology)
Faculty of Health Sciences
University of Adelaide 5005
South Australia
tel 61 8 8303 3570
fax 61 8 8223 4075
http://www.public-health.adelaide.edu.au/
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