[BioC] How to identify corrupt Affy CEL file?

Seth Falcon sfalcon at fhcrc.org
Thu May 31 23:05:22 CEST 2007

"Hooiveld, Guido" <Guido.Hooiveld at wur.nl> writes:

> Hi List,
> Does anyone know of a package/tool/script that allows checking the
> integrity of (Affymetrix CEL) files?? [e.g. using comparisons of MD5
> checksums]?

Yes, you can use the MD5 digest for such purpose.  There is a CRAN
package called digest which would allow you to do this from inside R.

You would want to compute the digest before uploading and send both
the file and the md5 sum.  Then downloaders can verify.

+ seth

Seth Falcon | Computational Biology | Fred Hutchinson Cancer Research Center

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