Re: [R] loop for regression

2012-07-04 Thread Joshua Wiley
>>> (Intercept) Market >>> -31 >>> >>> >>> $Stock2 >>> >>> Call: >>> lm(formula = x ~ Market, data = dat1) >>> >>> Coefficients: >>> (Intercept) Market >>>

Re: [R] loop for regression

2012-07-04 Thread arun
  Market    1   1   1    A.K. From: Bert Gunter To: arun Cc: Akhil dua ; R help Sent: Wednesday, July 4, 2012 2:48 PM Subject: Re: [R] loop for regression Please carefully read ?lm. As I previously told the OP, no looping/apply is necessary. The

Re: [R] loop for regression

2012-07-04 Thread Joshua Wiley
gt;> >> Coefficients: >> (Intercept) Market >> -21 >> >> >> $Stock3 >> >> Call: >> lm(formula = x ~ Market, data = dat1) >> >> Coefficients: >> (Intercept) Market >> -11 >

Re: [R] loop for regression

2012-07-04 Thread Bert Gunter
gt; > Coefficients: > (Intercept) Market > -11 > > A.K. > > > > > - Original Message - > From: Akhil dua > To: r-help@r-project.org > Cc: > Sent: Wednesday, July 4, 2012 1:08 AM > Subject: [R] loop for regression >

Re: [R] loop for regression

2012-07-04 Thread arun
ct.org Cc: Sent: Wednesday, July 4, 2012 1:08 AM Subject: [R] loop for regression -- Forwarded message -- From: Akhil dua Date: Wed, Jul 4, 2012 at 10:33 AM Subject: To: r-help@r-project.org Hi everyone I have data on stock prices and market indices and I need to run a sepera

Re: [R] loop for regression

2012-07-03 Thread Joshua Wiley
Hi, A few comments. First a for loop is probably not optimally efficient. Consider instead (using a bulit in example dataset): lm(cbind(mpg, hp) ~ cyl + vs, data = mtcars) which gives: Call: lm(formula = cbind(mpg, hp) ~ cyl + vs, data = mtcars) Coefficients: mpg hp (Inter

Re: [R] loop for regression

2012-07-03 Thread Bert Gunter
?lm and note in particular the section beginning "If response is a matrix..." -- Bert On Tue, Jul 3, 2012 at 10:08 PM, Akhil dua wrote: > -- Forwarded message -- > From: Akhil dua > Date: Wed, Jul 4, 2012 at 10:33 AM > Subject: > To: r-help@r-project.org > > > Hi everyone I > h

Re: [R] loop for regression

2012-07-03 Thread Bert Gunter
Homework? (We don't do homework here). -- Bert On Tue, Jul 3, 2012 at 10:08 PM, Akhil dua wrote: > -- Forwarded message -- > From: Akhil dua > Date: Wed, Jul 4, 2012 at 10:33 AM > Subject: > To: r-help@r-project.org > > > Hi everyone I > have data on stock prices and market ind

[R] loop for regression

2012-07-03 Thread Akhil dua
-- Forwarded message -- From: Akhil dua Date: Wed, Jul 4, 2012 at 10:33 AM Subject: To: r-help@r-project.org Hi everyone I have data on stock prices and market indices and I need to run a seperate regression of every stock on market so I want to write a "for loop" so that I wo