[BioC] [devteam-bioc] error in annotating a list of probeIDs

[Martin Morgan]

On 11/03/2012 07:02 AM, Maintainer wrote:
>
>   Hi all,
> Im very new to R and Bioconductor so please forgive my poor language! I've been trying to ma on my list of probeIDs the relative annotation but unsuccessfully. I get
> this error
>
> The object "probes" is a data.frame so maybe a should change its class? How would i do that?
> Thanks a lot

Hi -- yes, 'probes' should be a character vector; maybe there is a column in 
your data frame that contains the probe ids, in which case you should use that 
column. If you are unsure what to do, you might try posting the result of

   head(probes)
   sapply(probes, class)

and tell us which column you are interested in.

Martin

>
>
>   -- output of sessionInfo():
>
> symbols <- mget(probes,mouse4302SYMBOL,ifnotfound=NA)
>> Error in .checkKeysAreWellFormed(keys) :
>>     keys must be supplied in a character vector with no NAs
>
> --
> Sent via the guest posting facility at bioconductor.org.
>
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