Represent your series as a ts object and see ?lag Also lag.plot may or may not be of use to you.
On 7/2/06, Ronaldo Reis-Jr. <[EMAIL PROTECTED]> wrote: > Hi, > > If I have the follow situation: > > A dependent variable (i.e. number of insects) that is affected by an > independent variable (i.e. rain). The problem is that the measure of rain > affect the population in other moment. So there exit a lag between the rain > and the number of insects. Exist in R any tool to find what is this lag? > > Explain better. > > Suppose that I have a linear relationship between rain and insects. More rain > make more insects. If I try to model the rain and insects in the same moment > I cant see this relationship because the rain today affect the number of > insects in the future. Thus, I need to model the present rain with the number > of insect in the future. But when is this future? 1 day after, 2 days after, > etc. > > How the best way to calculate this lag? > > Thanks > Ronaldo > -- > Todos chegamos um dia como a agua e nos vamos como o vento > -- Graham Greene > -- > > Prof. Ronaldo Reis Júnior > | .''`. UNIMONTES/Depto. Biologia Geral/Lab. Ecologia Evolutiva > | : :' : Campus Universitário Prof. Darcy Ribeiro, Vila Mauricéia > | `. `'` CP: 126, CEP: 39401-089, Montes Claros - MG - Brasil > | `- Fone: (38) 3229-8190 | [EMAIL PROTECTED] > | ICQ#: 5692561 | LinuxUser#: 205366 > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
