[R] package FD

[Jim Lemon]

Hi Fabio,
You should write:

class(...)

where ... is the same as what you would type to have the variable
displayed on the console. Looking at your earlier message, it might
be:

x$trait3

so try:

class(x$trait3)

Jim


On Fri, Mar 4, 2016 at 11:30 AM, Fabio Monteiro
<fabio.monteiro1992 at gmail.com> wrote:
> 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]]
>> >
>> > ______________________________________________
>> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide
>> > http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>
>