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

From |
Christian Holz <statalist@krueschan.de> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: how do i increment a counter |

Date |
Wed, 31 Aug 2005 21:03:09 +0100 |

Annemarie,

you should also check the syntax of the if command (-help ifcmd-). The command that you want to be executed if the if statement is true should be either follow on the same line as the "if" or should be enclosed by { }.

That still does not, however, solve the problem, that your code looks quite confused.

In addition to Neil's interpretations of what you might want to achieve, it might also be to get a sum of the age of all observations in your dataset that are over 50 (assuming your age variable is "age"). In that case you could do

local total_sum=0

local totobs = _N

foreach obs of numlist 1/`totobs' {

if age[`obs']>50 {

local total_sum = `total_sum' + age[`obs']

}

}

di `total_sum'

generate total_sum=`total_sum'

C.

---

Christian Holz

Department of Sociology

University of Glasgow

Scotland, U.K.

aine dooley wrote:

I am finding in Stata that there does not seem to be an easy way to increment a counter despite countless trys and readings of the manal.

I want to do something llike the following, this is just an example:

generate byte total_sum =0

for each variable of varlist {

if age > 50

total_sum = total_sum + age

}

Stata doesn't seem to allow the if... then construct unless it is in a program. Although I have written a simple program (crazy that I have to do this) passing arguments, I still can't get it to work.

I must be missing something.

-Annemarie

_________________________________________________________________

Don’t just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/

*

* 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/

**Follow-Ups**:**Re: st: how do i increment a counter***From:*"aine dooley" <acd4983@hotmail.com>

**References**:**st: how do i increment a counter***From:*"aine dooley" <acd4983@hotmail.com>

- Prev by Date:
**Re: st: how do i increment a counter** - Next by Date:
**st: implementing a counter** - Previous by thread:
**Re: st: how do i increment a counter** - Next by thread:
**Re: st: how do i increment a counter** - Index(es):

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