I want to analyse a tilling array without cdf file for this tilling. so I have to convert a bpmap file to cdf. I am using R and aroma.affymetrix package for converting. by running this command:
"pathname
This link may help
http://www.aroma-project.org/howtos/bpmapCluster2Cdf/
also the error "invalid 'type' (list) of argument" shows that you have written something wrong in needed arguments may be the name of the chip.
I was getting the same error. Managed to fix it using groupName="Dm", at least that is for Drosophila Affy Tiling array (i.e. DM_tiling2_MR_v01). I was using groupName="DM" and the number of sequences gets to 0 and was getting this exact error message.
From the bpmapCluster2Cdf you should get groupNames. You can then choose the ones you want, i.e. not the AffxCtr ones.
Hope this helps
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