[R] How to strip one term from a data.frame? + How to write long line in script?

From: Guojun Zhu <shmilylemon_at_yahoo.com>
Date: Mon 01 May 2006 - 20:52:54 EST


I need to run a regression with 14 normal variables and 20 dummy variables. All the data is in a huge data.frame df. But there is some extra intermediate item in the same data.frame too. It will be nice I can strip off those terms and run lm(). Also, is there a simple way to write the formula, for example, just specify the y term, all other term in data.frame should be x_i. Or is there some kind of automatically way to build it? like use ls(df) couple with some other functions?

If I have to write it in the brute force way, I will need to write a real long line in script. I am in windows. I found the script does not work with a long line. It will not work either if I break it into a few lines. How to get rid of that? thanks.



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