[R] Maximum # of predictors?

From: Jim BRINDLE <j_brindle_at_hotmail.com>
Date: Mon 09 May 2005 - 03:40:49 EST


Is there anyway one can have more than 11 independent variables in a regression model? To hopefully illustrate: with 13 predictors in my model, the last 2 coefficient estimates are "NA". When I view the summary, it indicates that 2 coefficients are "not defined because of singularities". I am using the command:

mod <- lm(y ~ ., data = volumes[,3:22])

I am fairly new to R so I don't know if my issue is something inherent to R or my modeling approach.

Any insight would be most appreciated... Thanks in advance

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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Mon May 09 03:46:43 2005

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