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Dick Beyer
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@dick-beyer-26
Last seen 10.2 years ago
I have found one or more affy probeids in Mu11KsubA are missing. A
query at the netaffx site shows, for Mu11KsubA, there are these two
probes:
AF027865_1_s_at
AF027865_2_s_at
In my R session, I have
> tmp
AffyBatch object
size of arrays=534x534 features (2232 kb)
cdf=Mu11KsubA (6584 affyids)
number of samples=1
number of genes=6584
annotation=mu11ksuba
> grep("AF027865_1_s_at",geneNames(tmp),ignore.case=TRUE)
numeric(0)
z <- grep("AF027865",geneNames(tmp),ignore.case=TRUE)
> geneNames(tmp)[z]
[1] "af027865_s_at" "AF027865_s_at"
So the mu11ksuba metadata is missing the probeids and in their place
are two identical probeids.
Is this an error in the mu11ksuba metadata, or are probes that have
"_1_" and "_2_" variants in the original platform handled with upper
and lower case leading letters?
Thanks much,
Dick
**********************************************************************
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Richard P. Beyer, Ph.D. University of Washington
Tel.:(206) 616 7378 Env. & Occ. Health Sci. , Box 354695
Fax: (206) 685 4696 4225 Roosevelt Way NE, # 100
Seattle, WA 98105-6099
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http://staff.washington.edu/~dbeyer