Hey Ben, I installed mrtab. But I have STATA v8.0
any ideas?
Thanks
--- Ben Jann <[email protected]> wrote:
> You could also use -mrtab- (-ssc d mrtab-). For
> example:
>
> . sysuse auto, clear
> (1978 Automobile Data)
>
> . mrtab foreign, r(0 1 2 3) poly
>
> | Percent of Percent
> | Frequency responses of cases
> ------------+-----------------------------------
> 0 Domestic | 52 70.27 70.27
> 1 Foreign | 22 29.73 29.73
> 2 2 | 0 0.00 0.00
> 3 3 | 0 0.00 0.00
> ------------+-----------------------------------
> Total | 74 100.00 100.00
>
> Valid cases: 74
> Missing cases: 0
>
> Or simply:
>
> . mrtab foreign, r(0/3) poly
>
> | Percent of Percent
> | Frequency responses of cases
> ------------+-----------------------------------
> 0 Domestic | 52 70.27 70.27
> 1 Foreign | 22 29.73 29.73
> 2 2 | 0 0.00 0.00
> 3 3 | 0 0.00 0.00
> ------------+-----------------------------------
> Total | 74 100.00 100.00
>
> Valid cases: 74
> Missing cases: 0
>
> Now comes the cool part:
>
> . lab def origin 2 "Martian" 3 "Venusian", add
>
> . mrtab foreign, r(0/3) poly
>
> | Percent of Percent
> | Frequency responses of cases
> ------------+-----------------------------------
> 0 Domestic | 52 70.27 70.27
> 1 Foreign | 22 29.73 29.73
> 2 Martian | 0 0.00 0.00
> 3 Venusian | 0 0.00 0.00
> ------------+-----------------------------------
> Total | 74 100.00 100.00
>
> Valid cases: 74
> Missing cases: 0
>
> ben
>
> > -----Original Message-----
> > From: [email protected]
> [mailto:owner-
> > [email protected]] On Behalf Of Nick
> Cox
> > Sent: Friday, June 23, 2006 11:07 AM
> > To: [email protected]
> > Subject: st: RE: Easy question: How to get 0 to
> show up?
> >
> > I can't speak for STATA. Curiously enough,
> > the same question arises in Stata.
> >
> > The key question is how you expect Stata to
> > know that "Green" was also a possible category.
> >
> > I guess that there are some languages in which
> > the fact that "Green" was
> > defined as a possible value by way of a
> specification
> > of possible values would be enough.
> >
> > Stata doesn't work that way, however. Even if
> > you define a set of value labels, Stata doesn't
> > automatically tabulate those which are not
> > represented in the data, or the subset of the
> > data you specify. If these data are string,
> > then why should Stata know that "Green" was
> > a possible answer any more than (say) "Aardvark"?
> >
> > So you need a work-around in which you yourself
> spell
> > out the possible values. The only ones I know
> > are -tabcount- from SSC and the earlier -tabcond-
> > from SSC. Note that had you used
> >
> > . findit zeros
> >
> > or
> >
> > . findit zero
> >
> > you would have found out about -tabcount- for
> > yourself (together, naturally, with lots of
> > other stuff).
> >
> > . findit tabulate zero
> >
> > would have zeroed in further on what you need.
> >
> > Here are a few simple examples of how -tabcount-
> > works:
> >
> > . tabcount foreign, v(0 1 2 3 4)
> >
> > ----------------------
> > Car type | Freq.
> > ----------+-----------
> > Domestic | 52
> > Foreign | 22
> > 2 |
> > 3 |
> > 4 |
> > ----------------------
> >
> > . tabcount foreign, v(0 1 2 3 4) zero
> >
> > ----------------------
> > Car type | Freq.
> > ----------+-----------
> > Domestic | 52
> > Foreign | 22
> > 2 | 0
> > 3 | 0
> > 4 | 0
> > ----------------------
> >
> > . decode foreign, gen(FOREIGN)
> >
> > . tabcount FOREIGN , v("Domestic" "Foreign"
> "Martian" "Venusian") zero
> >
> > ----------------------
> > Car type | Freq.
> > ----------+-----------
> > Domestic | 52
> > Foreign | 22
> > Martian | 0
> > Venusian | 0
> > ----------------------
> >
> > Missings are not shown by default. I guess the
> reason
> > you have a puzzle about missing is that you think
> string
> > "." means missing. With strings in Stata only the
> empty string
> > "" means missing. If you have strings "." that you
> > regard as missing you should just exclude those if
> desired
> > by
> >
> > ... if COLOR != "."
> >
> > or replace them with empty strings.
> >
> > There was a more discursive account in the Stata
> Journal
> >
> > SJ-3-4 pr0011 . . . . . . . . Speaking Stata:
> Problems with tables,
> > Part II
> > Q4/03 SJ 3(4):420--439
> > reviews three user-written commands
> (tabcount, makematrix,
> > and groups) as different approaches to
> tabulation problems
> >
> > Nick
> > [email protected]
> >
> > buddyb
> >
> > > I'm running STATA 8.
> > >
> > > If I had a multiple choice question, like, what
> is
> > > your favorite color with red, yellow, black,
> green as
> > > the given choices,and asked 7 people and got the
> > > following results....
> > >
> > > Red 1
> > > Yellow 2
> > > Black 3
> > > Green 0
> > > . (missing)
> > >
> > > When I do a Table COLOR (this is my vname),
> > > I get:
> > >
> > > Red 1
>
=== message truncated ===
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