Hi There, I have a set of data (xi,yi).I want to fit them with the equation y=mx. note: in the above equation, there is no intercept. I don't know how to use common software such as R , matlab, sas, or spss to do this kind of regression. Does anyone know how to do this? I know it is easy to use least square method to do this by programming. But I want to find if there exists some common software which can do this. Thank you very much. Van
Hi, try : ln(y~x)>From: genomenet at gmail.com >Reply-To: genomenet at gmail.com >To: r-help at stat.math.ethz.ch >Subject: [R] how to fit y=m*x >Date: Thu, 14 Jun 2007 11:25:54 -0700 > >Hi There, > >I have a set of data (xi,yi).I want to fit them with the equation >y=mx. > >note: in the above equation, there is no intercept. > >I don't know how to use common software such as R , matlab, sas, or >spss to do this kind of regression. > >Does anyone know how to do this? > >I know it is easy to use least square method to do this by >programming. But I want to find if there exists some common software >which can do this. > >Thank you very much. > >Van > >______________________________________________ >R-help at stat.math.ethz.ch mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code._________________________________________________________________ D?couvrez le Blog heroic Fantaisy d'Eragon!
summary(lm(y ~ x - 1)) Use google (R "linear regression without intercept") Read the posting guide. There. On 6/14/07, genomenet@gmail.com <genomenet@gmail.com> wrote:> > Hi There, > > I have a set of data (xi,yi).I want to fit them with the equation > y=mx. > > note: in the above equation, there is no intercept. > > I don't know how to use common software such as R , matlab, sas, or > spss to do this kind of regression. > > Does anyone know how to do this? > > I know it is easy to use least square method to do this by > programming. But I want to find if there exists some common software > which can do this. > > Thank you very much. > > Van > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- Christophe Pallier (http://www.pallier.org) [[alternative HTML version deleted]]
Yes it does If you have R installed simply type ?lm This gives you the appropriate help page. Note for a no intercept regression "A formula has an implied intercept term. To remove this use either y ~ x - 1 or y ~ 0 + x. See formula for more details of allowed formulae. " --- genomenet at gmail.com wrote:> Hi There, > > I have a set of data (xi,yi).I want to fit them with > the equation > y=mx. > > note: in the above equation, there is no intercept. > > I don't know how to use common software such as R , > matlab, sas, or > spss to do this kind of regression. > > Does anyone know how to do this? > > I know it is easy to use least square method to do > this by > programming. But I want to find if there exists some > common software > which can do this. > > Thank you very much. > > Van > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, > reproducible code. >