0 rows> (or 0-length row.names)
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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