[R] Odp: Error in lm.fit(

[Peter Lauren]

Hi,

I checked my code and found that it was actually a
subsequent call to lm.fit()  (which only gets called
occasionally) where the problem occurred.  I found
that I was accidentally passing a matrix called PMs
instead of the vector PM.

Sorry about that.

Thanks,
Peter.

--- Petr PIKAL <petr.pikal at precheza.cz> wrote:

> Hi
> 
> r-help-bounces at r-project.org napsal dne 03.10.2007
> 14:56:19:
> 
> > I am using R.2.4.1 on Windows XP 5.1 (SP 2).
> 
> Upgrade R. Version 2.6.0 is imminent.
> 
> > 
> > I have the following line in my R code.
> > 
> > Analysis=anova(lm(PM ~ x))
> > 
> > It works the first 60 or so times it is called but
> > then I get the following error message.
> > 
> > Error in lm.fit(x, y, offset = offset, singular.ok
> =
> > singular.ok, ...) : 0 (non-NA) cases
> 
> Somehow x or PM is without any numbers.
> 
> > 
> > In order to examine the input, I preceeded the
> call
> > with the following.
> > 
> > print(PM)
> > print(x)
> 
> Check from where you printed it. Maybe you have
> these somwhere in your 
> environment but actual lm is using different ones.
> 
> > 
> > This gave the following.
> > 
> > [1] 245.0 189.0 249.8 188.0 184.3 230.0 147.0
> 185.3
> > 196.0 142.3 282.0 169.0
> > [13] 231.5 162.0 115.0 168.8 195.0 214.0 173.0
> 111.3
> > 360.0 192.3 305.5 206.0
> > [25] 111.0 247.0 188.0 246.0 252.0 114.0
> > 
> >  [1] 20.00 20.00 20.00 20.00 20.00 10.00 10.00
> 10.00
> > 10.00 10.00  7.50  7.50
> > [13]  7.50  7.50  7.50  5.00  5.00  5.00  5.00 
> 5.00 
> > 2.50  2.50  2.50  2.50
> > [25]  2.50  1.25  1.25  1.25  1.25  1.25
> > 
> > I would be most grateful if someone could help
> with
> > this problem.  I do not see why these input
> vectors
> > would give this error message. 
> > 
> > Also, is there a way to make it so the script
> keeps
> > running if it gets an error like this?
> 
> Maybe ?try.
> 
> You did not reveal much information for anybody to
> get you some help. If 
> you try to construct an artificial example which
> anybody can reproduce you 
> would maybe find what is the problem yourself.
> 
> Regards
> Petr
> 
> 
> > 
> > Many thanks in advance,
> > Peter Lauren.
> > 
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> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained,
> reproducible code.
> 
>