[BioC] MAS 5.0

Benjamin Milo BOLSTAD bolstad@stat.berkeley.edu
Wed, 22 Jan 2003 11:29:04 -0800 (PST)


The MAS 5.0  implementation is based upon availiable documentation.
Clearly it might be impossible to completely duplicate Affymetrix, since
there are pieces of their documentation that are left a little vague.

Ben

On Wed, 22 Jan 2003, Wilkinson, Mark wrote:

>
> This issue in general has kept me somewhat reluctant to use the affy
> package.
>
> To the affy package authors:  is the idea for affy to reproduce the
> functionality of MAS 5.0 (at least for some parts)?  In other words, should
> I be able to do probe level summaries exactly like MAS5, or is affy's
> version just a close approximation?
>
>
>
> Mark Wilkinson
> Informatics Analyst
> St. Jude Children's Research Hospital
> Department of Pharmaceutical Sciences
>
> The opinions expressed here are my own and do not necessarily represent
> those of St. Jude Children's Research Hospital.
>
>
>  -----Original Message-----
> From: 	Helene Boucher [mailto:bouhel01@borabora.crchul.ulaval.ca]
> Sent:	Wednesday, January 22, 2003 10:09 AM
> To:	bioconductor@stat.math.ethz.ch
> Subject:	[BioC] MAS 5.0
>
>
>
> I tried  expresso  to reproduce expression measures from MAS 5.0 but I get a
> slight
> difference from Affymetrix as illustrated on a set of 3 chips for selected
> probe
> sets. Any idea why that is?  The version of Unix we have is SunOS Release
> 5.8.
>
> Thanks,
>
> Helene
>
>
> 100001_at       29.6222834908728        10.2880336221679
> 80.7973366171763
> 100002_at       9.94107964466495        62.9653009129815
> 53.7356175596969
> 100003_at       2262.85860839992        1539.08193903367
> 1910.0212276237
> 100004_at       305.100816246875        188.181043441888
> 239.902666074234
> 100005_at       434.482366404616        638.860562906946
> 589.86003783735
> 100006_at       61.9587790672468        32.9005081415387
> 61.5914892307955
> 100007_at       890.772109484179        988.46987085589 1076.17589775836
> 100009_r_at     89.4108950323307        46.1650654835421
> 54.0252748779586
> 100010_at       227.251880233698        401.164278682326
> 424.746403324436
> 100011_at       1157.66237359318        702.613181714498
> 882.033123210299
> 100012_at       893.256638440421        1511.96440725101
> 2054.18415149103
> ----------------------------------------------------------------------------
> --------
>
>
> 100001_at       16      16      26.0    A       0.781017
>
>
>
> 100002_at       16      16      10.2    A       0.910595
>
>
>
> 100003_at       16      16      2271.8  P       0.000219
>
>
>
> 100004_at       16      16      302.2   P       0.004863
>
>
>
> 100005_at       16      16      439.1   P       0.006532
>
>
>
> 100006_at       16      16      63.5    A       0.358690
>
>
>
> 100007_at       16      16      894.7   P       0.001354
>
>
>
> 100009_r_at     16      16      90.2    P       0.000805
>
>
>
> 100010_at       16      16      227.4   P       0.009985
> ----------------------------------------------------------------------------
> ---------
> 100001_at       16      16      11.0    A       0.602006
>
>
>
> 100002_at       16      16      58.8    A       0.438361
>
>
>
> 100003_at       16      16      1545.5  P       0.000219
>
>
>
> 100004_at       16      16      191.7   P       0.011447
>
>
>
> 100005_at       16      16      641.4   P       0.002617
>
>
>
> 100006_at       16      16      33.7    A       0.117160
>
>
>
> 100007_at       16      16      992.9   P       0.001141
>
>
>
> 100009_r_at     16      16      47.4    P       0.011447
>
>
>
> 100010_at       16      16      402.6   P       0.001354
> ----------------------------------------------------------------------------
> ---------
> 100001_at       16      16      81.1    A       0.438361
>
>
>
> 100002_at       16      16      44.4    A       0.581931
>
>
>
> 100003_at       16      16      1917.2  P       0.000219
>
>
>
> 100004_at       16      16      244.2   P       0.031336
>
>
>
> 100005_at       16      16      591.0   P       0.001354
>
>
>
> 100006_at       16      16      62.9    A       0.089405
>
>
>
> 100007_at       16      16      1080.6  P       0.000673
>
>
>
> 100009_r_at     16      16      54.5    P       0.011447
>
>
>
> 100010_at       16      16      428.1   P       0.000959
> ----------------------------------------------------------------------------
> --------
>
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