Structure of Arabidopsis thaliana sample headers in count matrix: N_barcodeID where: - N ranges from 1 to 3, and represents a specific replicate: 1 = replicate_1 2 = replicate_2 3 = replicate_3 - barcode_ID corresponds to the barcode sequence in the "1000L3_barcodes.txt" file at https://github.com/SpatialTranscriptomicsResearch/st_pipeline/tree/master/ids. Each barcode ID corresponds to a specific X_Y spot coordinate on the array matrix.