data = [[3,4], [4,8], [5,3], [9,1]]
v_labels = ["line1", "line2", "line3", "line4", "line5", "line6"]
h_labels = ["group1", "group2", "group3", "group4"]
CairoPlot.bar_plot ('graphName', data, 600, 200, border = 20, grid = True, h_labels = h_labels, v_labels = v_labels)