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The <receptor>.txt files should be comma-separated files with values (no headers) in three columns. Each row represents a specific location in the hot spot site. The first column contains areaIDs, the second column receptorIDs and the third column gridIDs. Moreover, all columns are sorted such that the values in receptorID are ascending and each receptor may only be attributed to one area. Files of a different format cannot be read by the BN Adaptor.
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