[R] Patches for DBI/RMySQL "valueClass" problem?

[David James]

Hi,

I think yesterday's email from M.Kondrin's <mkondrin at hppi.troitsk.ru> 
summarizes two alternatives (1 and 2 below); of course you can also 
use R-1.7.1.  To recap, I think you have 3 easy choices (at least):  

(1) install R-patched from 
    ftp://ftp.stat.math.ethz.ch/Software/R/R-patched.tar.gz

(2) Or add the line 
        export(.valueClassTest) 
    to the file $R_HOME/src/library/methods/NAMESPACE
    (where $R_HOME is the directory where you installed R-1.8.0)

(3) Or revert back to R 1.7.1
 
Hope this helps,

--
David

Barnet Wagman wrote:
> According David Jame's response to my earlier question, there is a 
> problem with setGeneric.setMethod in R 1.8.0 that affects DBI and RMySQL. 
> 
> Is there a fix for this?  David Jame's refers to an 'R-patched version' 
> but I haven't seen anything like this on  CRAN.  Would going back to an 
> older version of R solve the problem?
> 
> Thanks,
> 
> Barnet Wagman
> 
> 
> "David James wrote:
> 
> However, there is a problem in the released version of R 1.8.0 that affects
> the DBI and other packages (has something to do with methods
> that use the "valueClass" argument in the setGeneric/setMethod functions).
> In this case one needs to use the R-patched version. "
> 
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