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From |
"Nick Cox" <[email protected]> |

To |
<[email protected]> |

Subject |
st: RE: Makematrix- Possible title of the matrix? |

Date |
Fri, 25 Mar 2005 18:06:09 -0000 |

```
Michael Blasnik has already solved the problem,
but the comment on -makematrix-, which is on
SSC, needs to be put into context.
As I understand it, the purpose of -makematrix-
is to make a matrix, and secondarily to display
it. When you -list- (usually -matrix list-)
a matrix you just made, you can specify a
title in the standard way, but that is
transient. It will not be stored with the
matrix, with example.
So in using -makematrix- to create a set
of matrices the issue is how those titles
-- and perhaps other stuff, like the formats
you want to use, and so forth --
could possibly be stored. That is all programmable
in various ways, but the issues would
appear to be:
1. The programmer's time and effort.
2. Documenting yet more options. The syntax
of -makematrix- is already complicated.
3. Creating an obligation on the user
to get them out of wherever they're stored
for whatever they're needed for.
4. Whether this can be done more easily
in other ways.
In this particular case, it seems clear
that the answer to #4 is "Yes", as Michael's
example indicates.
Nick
[email protected]
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of
> Herve STOLOWY
> Sent: 24 March 2005 12:05
> To: [email protected]
> Subject: st: Makematrix- Possible title of the matrix?
>
>
> Dear All:
>
> I use the -makematrix- command -followed by -mat2txt- to
> produce tables of descriptive statistics.
>
> It works perfectly with the following command:
>
> makematrix c1, from(r(N) r(mean) r(sd))label : univar var1
> var2 var3 var4 if president==1
> makematrix c2, from(r(N) r(mean) r(sd)) label : univar var1
> var2 var3 var4 if president==0
> makematrix c3, from(r(z) 2*normprob(-abs(r(z)))) label :
> ranksum var1 var2 var3 var4 , by(indep)
> matrix c4 = c1 , c2, c3
> matrix colnames c4 = N "Mean" "Standard deviation" N "Mean"
> "Standard deviation" "Mann-Whitney U-test (Z)" "Mann-Whitney
> U-test (p-value)"
> mat2txt, matrix(c4) saving(stat_formation_metier) append
>
> I only have a little question: I append several tables (I
> rerun the same command replacing "president" by other
> variables) and there is no way to distinguish the content of
> each table without remembering the origin of the computation.
>
> I searched in the help for -makematrix- and did not find a
> possibility to give a title to each table (the c4 matrix in
> my example). It would be nice to have a title in the
> upper-left cell of the table, for example "President", in the
> same column as the variables names.
>
> Do you think this could be possible?
>
> Best regards
>
> Herv� Stolowy
>
>
>
>
>
> ***********************************************************
> Professeur/Professor
> Coordinateur du D�partement/Head of Department
> HEC Paris
> D�partement Comptabilit� Contr�le de gestion / Dept of
> Accounting and Management Control
> 1, rue de la Liberation
> 78351 - Jouy-en-Josas
> France
> Tel: +33 1 39 67 94 42 - Fax: +33 1 39 67 70 86
> [email protected]
> http://campus.hec.fr/profs/stolowy/perso/home.htm
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
```

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