[R] 0 rows> (or 0-length row.names)

[Shivi Bhatia]

Hi Mark,

It gives me num [1:5083]. I have used head also to see first 10 obs:

head(SFDC$case_age,10)
 [1] 24.84  0.05 13.38  0.15 11.11  4.16  8.13  0.07  3.61  0.00

Thanks.

On Tue, Aug 30, 2016 at 10:05 PM, Mark Sharp <msharp at txbiomed.org> wrote:

> What do you get from
> str(SFDC$case_age)
>
> Mark
>
> R. Mark Sharp, Ph.D.
> Director of Primate Records Database
> Southwest National Primate Research Center
> Texas Biomedical Research Institute
> P.O. Box 760549
> San Antonio, TX 78245-0549
> Telephone: (210)258-9476
> e-mail: msharp at TxBiomed.org
>
>
>
>
>
>
>
> > On Aug 30, 2016, at 11:24 AM, Shivi Bhatia <shivipmp82 at gmail.com> wrote:
> >
> > I know this question has been asked zillion times but even after
> consulting
> > Stack Overflow & other forum cant figure out the reason.
> >
> > I have one var in my data-set names case age. This variable is numeric
> as:
> >
> > class(SFDC$case_age)
> >
> > *numeric*
> >
> > however it throws this error:
> >
> > <0 rows> (or 0-length row.names)
> > As checked this only happens either there is some space at the end of the
> > variable name, or there are no values whereas this is a numeric variable
> > with no missing values and has a total of 5400 observations.
> >
> > This var has a range from 0 to 240 in number of days for case variable
> > hence i need to do a logarithm transformation & make it use in the model.
> > Total unique obs are around 1500.
> >
> > Please advice.
> >
> > [[alternative HTML version deleted]]
> >
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