Question: Microarray Chip And Array
0
gravatar for khan
5.5 years ago by
khan100
Germany
khan100 wrote:

Hi,

I have micorarray expression data set.it's for around 100 samples. I don't know exactly which kind of microarray platform are used. but I have problem in understanding some information about the dataset. the data set are from college and he is not available anymore .

herehttp://s21.postimg.org/6bj392lc7/microarray_1.png

My Question is : what does it mean that chips with the same ID belong to different array and how should I be careful about using this data set ?

ADD COMMENTlink modified 5.5 years ago by Sean Davis25k • written 5.5 years ago by khan100
2

By itself that annotation is meaningless. Do you have it from a publication, data repository or collaborator? If it's the latter, ask him, otherwise edit your post and add more info.

ADD REPLYlink written 5.5 years ago by David Westergaard1.4k

@David Westergaard , I' edited .

ADD REPLYlink written 5.5 years ago by khan100

That is NOT adding more info. That is just making what info you have already posted into a screenshot.

ADD REPLYlink written 5.5 years ago by David Westergaard1.4k
3
gravatar for Sean Davis
5.5 years ago by
Sean Davis25k
National Institutes of Health, Bethesda, MD
Sean Davis25k wrote:

I hate to be a realist, but if, indeed, the information about the sample identities, the array platform, and the experimental design have been lost, then you will likely have a hard time analyzing the data. There is often someone that knows something about what was done (purchasing, array core, lab manager or long-term tech, the student who produced the data, etc.). Sorry, but I think you might have hit the limits of what biostars can help with on this one.

ADD COMMENTlink written 5.5 years ago by Sean Davis25k

@ Sean Davis, thanks. I know. but I have to go ahead somehow. do you have review paper about microarry paltform which lot's of chips or array are printed in one glass ? like affymatrix technology

ADD REPLYlink written 5.5 years ago by khan100
1

You do not "have to go ahead somehow." Some causes are lost. Accept and move on to something more productive.

ADD REPLYlink written 5.5 years ago by Neilfws48k

You should find a local bioinformatician who can work with you if you really need to proceed. Note that without some more detail, your data are certainly of questionable value.

ADD REPLYlink written 5.5 years ago by Sean Davis25k
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