[R] loop for regression

[arun]

Hi,

You could also use:
dat1 <- read.table(text="

Date              Stock1  Stock2  Stock3    Market
01/01/2000        1          2          3            4
01/02/2000        5          6          7            8
01/03/2000        1          2          3            4
01/04/2000        5          6          7            8
", header=TRUE, stringsAsFactors=FALSE)

Stocks<-dat1[,2:4]
apply(Stocks,2,function(x) lm(x~Market,data=dat1))
$Stock1

Call:
lm(formula = x ~ Market, data = dat1)

Coefficients:
(Intercept)       Market  
         -3            1  


$Stock2

Call:
lm(formula = x ~ Market, data = dat1)

Coefficients:
(Intercept)       Market  
         -2            1  


$Stock3

Call:
lm(formula = x ~ Market, data = dat1)

Coefficients:
(Intercept)       Market  
         -1            1  

A.K.




----- Original Message -----
From: Akhil dua <akhil.dua.12 at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Wednesday, July 4, 2012 1:08 AM
Subject: [R] loop for regression

---------- Forwarded message ----------
From: Akhil dua <akhil.dua.12 at gmail.com>
Date: Wed, Jul 4, 2012 at 10:33 AM
Subject:
To: r-help at 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 wont have to write codes again
and again to run the regression...
my data is in the format given below



Date               Stock1  Stock2   Stock3    Market
01/01/2000         1           2          3             4
01/02/2000         5           6          7             8
01/03/2000         1           2          3             4
01/04/2000         5           6          7             8


So can any one help me how to write this loop

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