column	row	expression	CNA	mutation
patient_01	gene_A	8.5	0	0
patient_01	gene_B	2.3	-2	0
patient_02	gene_A	6	0	1
patient_02	gene_B	5	0	0
patient_03	gene_A 	12.1	2	0
patient_03	gene_B 	4.9	0	1