Re: [R] weighted least squares vs linear regression

2010-01-28 Thread David Winsemius
On Jan 28, 2010, at 2:14 PM, DispersionMap wrote: sorry, i ommited some important information. this is a documentation question! i meant to ask how to find out how R calculates the standard error and how it differs between the two models Luke, Use the Code!. -- View this message

Re: [R] weighted least squares vs linear regression

2010-01-28 Thread DispersionMap
sorry, i ommited some important information. this is a documentation question! i meant to ask how to find out how R calculates the standard error and how it differs between the two models -- View this message in context: http://n4.nabble.com/weighted-least-squares-vs-linear-regression-tp13879

Re: [R] weighted least squares vs linear regression

2010-01-28 Thread Bert Gunter
ntech Nonclinical Statistics -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of DispersionMap Sent: Thursday, January 28, 2010 9:06 AM To: r-help@r-project.org Subject: [R] weighted least squares vs linear regression I need to find ou

[R] weighted least squares vs linear regression

2010-01-28 Thread DispersionMap
I need to find out the difference between the way R calculates weighted regression and standard regression. I want to plot a 95% confidence interval around an estimte i got from least squares regression. I cant find he documentation for this ive looked in ?stats ?lm ?predict.lm ?weights ?res