Dear Bioconductor user I want to use the intensity data at the bead level from Iscan. I use readIDAT to read the .idat file to text file with bead ID, mean intensity, and SD. I want to use the Beadarray package to do QC with intensity but it requires a text file with bead id, intensity, and position. The position of the bead is not included as the output of readIDAT.

Has anyone met this situation before? How do you handle this? Thank you very much

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There's a whole vignette about using beadarray to analyze at the bead level. You might start there.