Could you provide more explanation or help on how to convert expression data from simple .tsv table into an ExpressionSet object?

I have expression values for a list of genes (n rows, each corresponding to one genes) in mixed samples (m columns, each corresponding to a mixed sample). In a separate file, I have the expression values for a subset of these genes (j rows) in pure tissue or cell types (k columns, each corresponding to a pure cell type). I would like to run the CellMix algorithms on this dataset to calculate the fractions of the pure cells in the mixed samples.

Some extra explanation would be much appreciated.

Thanks,
Maria



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