[R-SIG-Mac] summary() suddently producing weird NULL: values for factors and character attributes

[John Helly]

Aloha.

For the past few weeks, maybe 6 or more, I've been getting strange 
results from the summary() function for data.frames.  Has anyone else 
noticed something like this?  I don't think I've done anything to cause 
this but cannot find anything to attribute it to.  Example below.  It 
lists every row as a value in the data frame attribute DAUCO.  Similar 
behavior found with other read.table results using syntax below.


PRISM        = 
read.table(PRISM_INPUT,header=TRUE,stringsAsFactors=TRUE,sep=',',
colClasses=c('character','numeric','numeric','numeric','numeric','numeric'))

P2 is a subset of PRISM.



J.

-- 

John Helly, University of California, San Diego / San Diego Supercomputer Center / Scripps Institution of Oceanography / 760 840 8660 mobile / http://www.sdsc.edu/~hellyj
ORCID ID: orcid.org/0000-0002-3779-0603


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