If appropriate for your data, you could try errors-in-variables (package leiv)
or use the first component from principal components.
HTH,
-- David
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of array chip
Sent: Monday, August 09, 2010 11:34 AM
To: r-help at r-project.org
Subject: [R] "regression" line of 2 independent variables
Hi, I would like to a draw a scatterplot of x1 and x2 (plot (x1, x2)), and also
want to draw a sort of "regression" line across the data points. But
x1 and x2
are just 2 independent variables, so in this case a regression of x1 over x2, or
vice versa, is not appropriate per se. What would be an appropriate way to do
this? Thanks for any suggestions.
John
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