[R] (... not defined because of singularities) in lm()
jpu at apple.com
Mon Aug 7 18:29:48 CEST 2006
isInterNuclear and zeroSyllToEOP are both binary, and it turns out :
isInterNuclear & zeroSyllToEOP == zeroSyllToEOP.
On Aug 6, 2006, at 11:23 PM, Petr Pikal wrote:
> On 4 Aug 2006 at 16:44, Jia Pu wrote:
> To: r-help at stat.math.ethz.ch
> From: Jia Pu <jpu at apple.com>
> Date sent: Fri, 4 Aug 2006 16:44:44 -0700
> Subject: [R] (... not defined because of singularities) in
>> I got the message, " Coefficients: (1 not defined because of
>> singularities)", in the returned result of lm(). What does it mean?
>> And where should I start investigating why it happens?
> one of your variables (probably isInterNuclear:zeroSyllToEOP) is a
> linear combination of other explanatory variables or is constant.
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