[R] Problem with List() Inside Function

[Peter Lauren]

Dear Dr. Burns,

Many thanks for your reply.  I figured out what the
problem was.  I had neglected to put the line
out;
at the end of the function.  Once I did that,
everything was fine.  

Thanks again,
Peter.

--- Patrick Burns <pburns at pburns.seanet.com> wrote:

> My solution when I run into mysteries like this
> is to put
> 
> browser()
> 
> in the function just before or after the line of
> interest.
> The magnitude and direction of my stupidity usually
> become clear quickly.
> 
> Patrick Burns
> patrick at burns-stat.com
> +44 (0)20 8525 0696
> http://www.burns-stat.com
> (home of S Poetry and "A Guide for the Unwilling S
> User")
> 
> Peter Lauren wrote:
> 
> >I have a function declared thus.
> >FirstEigenvectorBoundary.Training <-
> >function(InputFileName='C:/Samples2/PT_Amp.txt',
> >Header=TRUE, Colour="red")
> >
> >Inside the function, I have the following call
> >
>
>out<-list(x=Eigenvectors[2:(NumMetricsSelected+1),1],
> >y=-0.8, z=NumMetricsSelected);
> >
> >NumMetricsSelected has the value 2 and Eigenvectors
> >has the following form
> >           [,1]       [,2]       [,3]
> >[1,]  0.6404630 -0.2153989  0.7371638
> >[2,] -0.6081319  0.4439621  0.6580830
> >[3,]  0.4690231  0.8697706 -0.1533503
> >
> >When I do it manually at the console, I get the
> >correct result.  I.e.
> >  
> >
> >>out
> >>    
> >>
> >$x
> >[1] -0.6081319  0.4690231
> >
> >$y
> >[1] -0.8
> >
> >$z
> >[1] 2
> >
> >However, when I call the function like this
> >  
> >
> >>Training<-FirstEigenvectorBoundary.Training()
> >>    
> >>
> >
> >I get
> >  
> >
> >>Training
> >>    
> >>
> >$x
> >[1] 0.658083
> >
> >$y
> >[1] -0.8
> >
> >$z
> >[1] 2
> >
> >That is, the $x element has only one value (instead
> of
> >2) and it is from the wrong part of the matrix.
> >
> >Can anyone see what I am doing wrong?
> >
> >Thanks very much,
> >Peter.
> >
> >______________________________________________
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> >
> >
> >
> >  
> >
> 
>