[R] Linear Regression ?
kayj
kjaja27 at yahoo.com
Mon Jun 16 16:27:40 CEST 2008
Hi All,
I have a data with 15 columns. the first 10 column are dependent(y’s)
variables and the following 5 an columns are the independent variables(x’s)
( MY DATA HAS A HEADER WITH THE NAME OF THE VAIABLES). I need to apply
linear regression y=a+bx where I need x to be one of the independent
variable and y to be one of the dependent variable, but for each x I have to
repeat the model for all 5 independent variable one at a time .
Also each x is a categorical variable with 4 categories so I have to
introduce three variables for each x
New Variable 1 New Variable 2 New Variable 3
Category 1 0 0 0
Category 2 1 0 0
Category 3 0 1 0
Category 4 0 0 1
I want R to print out the summary and the analysis of variance for each
model.
How can this done in R? I want to use some loop that loops over the
independent variables for each x ?Also , I am not sure how to deal with the
problem of each x being a categorical variable and I have to create these
new variables for each x?
I hope that someone can help. I really Appreciate it.
--
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