[R] package FD

Fabio Monteiro fabio.monteiro1992 at gmail.com
Fri Mar 4 01:30:06 CET 2016


i just called trait3 to my variable.

Is this what i'm suppose to wright? class(trait3), or class
(my_trait3_variable?

both give error

2016-03-03 23:42 GMT+00:00 Jim Lemon <drjimlemon at gmail.com>:

> Hi Fabio,
> It is possible that your remaining "numeric" variable is a factor. What
> does:
>
> class(my_numeric_variable)
>
> say? (where you substitute the name of your "numeric" variable)
>
> Jim
>
>
> On Fri, Mar 4, 2016 at 2:25 AM, Fabio Monteiro
> <fabio.monteiro1992 at gmail.com> wrote:
> > Hello, my name is Fábio and I'm a Marine Ecology student in Portugal.
> >
> > I'm currently using the FD package for my work and yesterday one message
> > appeared that I wasn't expecting and I really need your help to try to
> > figure out what's happening.
> > I'm using the dbFD function and the following message appeared:
> >
> > FRic: Only categorical and/or ordinal trait(s) present in 'x'. FRic was
> >  measured as the number of unique trait combinations, NOT as the convex
> > hull volume.
> > FDiv: Cannot be computed when only categorical and/or ordinal trait(s)
> > present in 'x'.
> >
> > My data:
> > x is a matrix with species vs functional traits
> > a is a matrix with species vs sampling (in abundances)
> >
> > Previously I used the dbFD function and was working just fine. Yesterday
> I
> > removed 2 traits and this message appeared.
> >
> > My traits now are 3 categorical traits and 1 numeric. The 2 trais that I
> > removed were numeric traits as well. I really need to remove those trait,
> > but I still need the FDiv to be calculated. Can you explain to me why is
> > this error occurring? I need to know how the dbFD is measuring the
> indexes
> > so I can understanding the error and if I can or can't continue to use
> this
> > package (if it applies or not to my goals)
> >
> > Kind regards
> >
> > Fábio Monteiro
> >
> >         [[alternative HTML version deleted]]
> >
> > ______________________________________________
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>

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