Notice: On March 31, it was **announced** that Statalist is moving from an email list to a **forum**. The old list will shut down at the end of May, and its replacement, **statalist.org** is already up and running.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

From |
Ulrich Kohler <kohler@wzb.eu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Weights now allowed |

Date |
Thu, 13 Sep 2012 21:10:53 +0200 |

BTW the reason why . replace ravgexpretage[`i'] = r1expretage[`i'] + r3expretage[`i'] ... didn't work is the pair of brackets in front of the equal sign. The commands -generate- and -replace- expects a variable name after the command and "ravgexpretage[`i']" is not a valid variable name. Stata therefore interprets all that is inside [] as a weight and claims that weights are not allowed with -replace. Note that -generate-/-replace- expect an "expression" behind the equal sign and "r1expretage[`i']" is valid syntax for an expression. If you would realy need to do want you wanted to do the code would have been . sysuse auto . gen myvar = . . forv i = 1/10 { . replace myvar = mpg[`i'] in `i' . } But you should never do something like that with Stata! Uli Am Donnerstag, den 13.09.2012, 14:24 -0400 schrieb Daniel Almar de Sneijder: > wow its a miracle, it actually works > > thanx > > i'll still go for tiger :) > > On Thu, Sep 13, 2012 at 2:16 PM, Scholes, Shaun <s.scholes@ucl.ac.uk> wrote: > > Are you sure? Try: > > > > clear > > input x1 x2 x3 > > . 1 2 > > 2 2 3 > > 4 . . > > end > > > > egen tiger = rowmean(x1-x3) > > list tiger > > > > Sorry, I am a golf fan. Maybe that should be -egen Rory-. > > best wishes > > Shaun > > > > > > > > > > -----Original Message----- > > From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Daniel Almar de Sneijder > > Sent: 13 September 2012 19:05 > > To: statalist@hsphsun2.harvard.edu > > Subject: Re: st: Weights now allowed > > > > Hello and thanks for the message. > > > > The reason I loop over the data is because sometimes only 3 variables have an observation. > > When I use rowmean then it treats the outcome as 0 if at that row not all observations have a value. So to clarify, I want to obtain the average in this way: > > > > x1 x2 x3 avg(x1 x2 x3) > > . 1 2 1.5 > > 2 2 3 7/3 > > 4 . . 4 > > > > > > > > > > > > > > I tried it btw now with 'i' but it still doesnt work??? > > > > > > ***** calculates average expretage > > drop ravgexpretage > > gen double ravgexpretage = r1expretage > > forvalues i = 1/30659 { > > replace ravgexpretage[`i'] = (r1expretage[`i'] + r3expretage[`i'] + r4expretage[`i'] + r5expretage[`i'] + r6expretage[`i'] + r7expretage[`i'] + r8expretage[`i'])/7 } > > ****** > > > > > > > > > > On Thu, Sep 13, 2012 at 1:50 PM, Joerg Luedicke <joerg.luedicke@gmail.com> wrote: > >> You would need to type [`i'] instead of [i] since i is a local macro > >> here (see -help macro- and -help forvalues-). However, there is no > >> need to loop over all observations in your data, see -help egen > >> rowmean-. > >> > >> J. > >> > >> On Thu, Sep 13, 2012 at 12:23 PM, Daniel Almar de Sneijder > >> <dasneijder@gmail.com> wrote: > >>> Hello Stata > >>> > >>> When I attempt to run: > >>> > >>> ***** calculates average exp ret age > >>> drop ravgexpretage > >>> > >>> gen double ravgexpretage = r1expretage > >>> > >>> forvalues i = 1/30659 { > >>> replace ravgexpretage[i] = ( r1expretage[i] + r3expretage[i] + > >>> r4expretage[i] + r5expretage[i] + r6expretage[i] + r7expretage[i] + > >>> r8expretage[i] ) > >>> replace ravgexpretage[i] = ravgexpretage[i] *(1/7) } > >>> > >>> I receive the message: "weights not allowed" > >>> > >>> What is the problem and How can I circumvene this? > >>> My initial idea was to add all the variables up and then divide it by > >>> 7, which works. However it only adds the observations up if each > >>> variable has a observation So that is why I decided to do it like > >>> this. > >>> > >>> Thanks, > >>> Daniel > >>> * > >>> * For searches and help try: > >>> * http://www.stata.com/help.cgi?search > >>> * http://www.stata.com/support/statalist/faq > >>> * http://www.ats.ucla.edu/stat/stata/ > >> * > >> * For searches and help try: > >> * http://www.stata.com/help.cgi?search > >> * http://www.stata.com/support/statalist/faq > >> * http://www.ats.ucla.edu/stat/stata/ > > * > > * For searches and help try: > > * http://www.stata.com/help.cgi?search > > * http://www.stata.com/support/statalist/faq > > * http://www.ats.ucla.edu/stat/stata/ > > > > > > * > > * For searches and help try: > > * http://www.stata.com/help.cgi?search > > * http://www.stata.com/support/statalist/faq > > * http://www.ats.ucla.edu/stat/stata/ > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Weights now allowed***From:*Daniel Almar de Sneijder <dasneijder@gmail.com>

**Re: st: Weights now allowed***From:*Joerg Luedicke <joerg.luedicke@gmail.com>

**Re: st: Weights now allowed***From:*Daniel Almar de Sneijder <dasneijder@gmail.com>

**RE: st: Weights now allowed***From:*"Scholes, Shaun" <s.scholes@ucl.ac.uk>

**Re: st: Weights now allowed***From:*Daniel Almar de Sneijder <dasneijder@gmail.com>

- Prev by Date:
**Re: st: Weights now allowed** - Next by Date:
**st: mlowess- Rescaling the Y-axis** - Previous by thread:
**Re: st: Weights now allowed** - Next by thread:
**RE: st: Weights now allowed** - Index(es):