Re: [R] linear regression in a data.frame using recast -- A fortunes candidate??

2011-03-16 Thread Abhijit Dasgupta, PhD
Seconded On 03/16/2011 05:37 PM, Bert Gunter wrote: Ha! -- A fortunes candidate? -- Bert If this is really a time series, then you will have serious validity problems due to auto-correlation among non-independent units. (But if you are just searching for a way to pull the wool over the eyes of

Re: [R] linear regression in a data.frame using recast -- A fortunes candidate??

2011-03-16 Thread Bert Gunter
Ha! -- A fortunes candidate? -- Bert > > If this is really a time series, then you will have serious validity > problems due to auto-correlation among non-independent units. (But if you > are just searching for a way to pull the wool over the eyes of the > statistically uninformed, then I guess th

Re: [R] linear regression in a data.frame using recast

2011-03-16 Thread David Winsemius
On Mar 16, 2011, at 3:19 PM, Justin Haynes wrote: I have a very large dataset with columns of id number, actual value, predicted value. This used to be a time series but I have dropped the time component. So I now have a data.frame where the id number is repeated but each value in the actual

[R] linear regression in a data.frame using recast

2011-03-16 Thread Justin Haynes
I have a very large dataset with columns of id number, actual value, predicted value. This used to be a time series but I have dropped the time component. So I now have a data.frame where the id number is repeated but each value in the actual and predicted columns are unique. I assume I need to