Hi,
I have micorarray expression dataset. 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 dataset are from college and he is not available anymore.
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 dataset?
1 answer
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.
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.
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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.
@David Westergaard , I' edited .
That is NOT adding more info. That is just making what info you have already posted into a screenshot.