rec.array([(611.88243, 9089.5601, 5133.0, 864.07514, 1715.37476, 765.22777,
    1291111964948.0), (611.88243, 9089.5601, 5133.0, 864.07514, 1715.37476,
    765.22777, 1291113113366.0), (611.88243, 9089.5601, 5133.0, 864.07514, 
    1715.37476, 765.22777, 1291120650486.0)], dtype=[('A', '<f8'), ('B',
    '<f8'), ('C', '<f8'), ('D', '<f8'), ('E', '<f8'), ('F', '<f8'), (
    'timestamp', '<f8')])
load csv into 2D matrix with numpy for plotting