[BioC] Design Matrix Question
Jason Skelton
jps at sanger.ac.uk
Wed Oct 22 17:28:22 MEST 2003
Kenny Ye wrote:
>what is your treatments? and what is the level 0? would you please give
>more details on your experiment?
>
>Kenny
>
Hi kenny
Apologies my understanding of how a matrix works isn't necessarily correct
The 0 indicates that they are NOT present in a particular treatment
I'm currently using R: Version 1.7.1
DIF1,2 and 3 are different but similar drugs...............
Slides 1-6 are treatment 1 (DIF1) Vs No treatment
Slide1 Cy5/Cy3 (DIF1/no treatment)
Slide2 Cy3/Cy5 (DIF1/no treatment)
Slide3 Cy5/Cy3 (DIF1/no treatment)
Slide4 Cy3/Cy5 (DIF1/no treatment)
Slide5 Cy3/Cy5 (DIF1/no treatment)
Slide6 Cy5/Cy3 (DIF1/no treatment)
Slides 7-12 are treatment 2 (DIF2) Vs No treatment
Slide7 Cy5/Cy3 (DIF2/no treatment)
Slide8 Cy3/Cy5 (DIF2/no treatment)
Slide9 Cy5/Cy3 (DIF2/no treatment)
Slide10 Cy3/Cy5 (DIF2/no treatment)
Slide11 Cy3/Cy5 (DIF2/no treatment)
Slide12 Cy5/Cy3 (DIF2/no treatment)
Slides 13-18 are treatment 3(DIF3) Vs No treatment
Slide13 Cy5/Cy3 (DIF3/no treatment)
Slide14 Cy3/Cy5 (DIF3/no treatment)
Slide15 Cy5/Cy3 (DIF3/no treatment)
Slide16 Cy3/Cy5 (DIF3/no treatment)
Slide17 Cy3/Cy5 (DIF3/no treatment)
Slide18 Cy5/Cy3 (DIF3/no treatment)
I'd obviously like to compare across the different treatments DIF1,2 and 3
Thanks
Jason
>>Hi
>>
>>I'd like to construct a design matrix similar to the following but have
>>no idea how to do it
>>
>>I'm trying the model.matrix function
>>
>>Slide Treatment1 Treatment2 Treatment3
>>1 -1 0 0
>>2 1 0 0
>>3 -1 0 0
>>4 1 0 0
>>5 1 0 0
>>6 -1 0 0
>>7 0 -1 0
>>8 0 1 0
>>9 0 -1 0
>>10 0 1 0
>>11 0 1 0
>>12 0 -1 0
>>13 0 0 -1
>>14 0 0 1
>>15 0 0 -1
>>16 0 0 1
>>17 0 0 1
>>18 0 0 -1
>>
>>-1 represents Cy5/cy3
>>1 represents Cy3/Cy5
>>
>>
>>
--
--------------------------------
Jason Skelton
Pathogen Microarrays
Wellcome Trust Sanger Institute
Hinxton
Cambridge
CB10 1SA
Tel +44(0)1223 834244 Ext 7123
Fax +44(0)1223 494919
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