[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

From |
"Jonas Dovern" <J.Dovern@student.unimaas.nl> |

To |
"Stata Forum" <statalist@hsphsun2.harvard.edu> |

Subject |
st: Store cross-section means of stacked data |

Date |
Tue, 25 Oct 2005 17:24:03 +0200 |

Dear Stata-Users,

I have the following problem with regard to efficient programming/data storing:

Assume I have a data in stacked form, e.g.:

Country Year Var1

A 1 q

A 2 w

A 3 e

A 4 r

A 5 t

B 1 z

B 2 u

B 3 i

B 4 o

. . .

. . .

. . .

C 5 p

What I want is to compute the average across countries of Var1 for each year - and store these values to make a plot later on. So far I created a new variable, say Mean, and filled it with the mean values. The new variable, however, is also of size #Counties*#Years repeating the entries for each year #Countries-times -- although I would need to store the mean for each year only once.

What is the usual way to perform this task? Store the values in a matrix? Can I easily plot this matrix later on?

Thanks for your help,

Jonas

*

* 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/

- Prev by Date:
**st: Re: -tmap- legend** - Next by Date:
**Re: st: analysis of cumulative incidence data** - Previous by thread:
**st: Re: some questions on ivreg2** - Next by thread:
**st: Store cross-section means of stacked data** - Index(es):

© Copyright 1996–2015 StataCorp LP | Terms of use | Privacy | Contact us | What's new | Site index |