datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,04 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,04 2:30:00,30 ,       0, 0.43679, 0.01456,0.079747
sgpcmbeC1.c1,1998,04 3:30:00,30 ,       0,0.547101,0.018237,0.099886
sgpcmbeC1.c1,1998,04 4:30:00,30 ,       0,0.051027,0.001701,0.009316
sgpcmbeC1.c1,1998,04 5:30:00,30 ,       0,4.342965,0.622043,1.066176
sgpcmbeC1.c1,1998,04 6:30:00,30 ,6.699174, 94.5308,47.73836,26.16856
sgpcmbeC1.c1,1998,04 7:30:00,30 ,26.94756,300.3048,192.2999,87.21362
sgpcmbeC1.c1,1998,04 8:30:00,30 ,63.19279,514.8456,355.4932, 145.574
sgpcmbeC1.c1,1998,04 9:30:00,30 ,76.82961,706.5274,487.8501,228.9218
sgpcmbeC1.c1,1998,0410:30:00,30 ,47.86592,845.0551,623.8475,269.1078
sgpcmbeC1.c1,1998,0411:30:00,30 ,73.92074,936.8524,690.8452, 315.988
sgpcmbeC1.c1,1998,0412:30:00,30 ,64.48962,966.0762,696.7229,326.0607
sgpcmbeC1.c1,1998,0413:30:00,30 , 69.2831,950.5706,695.6398, 311.445
sgpcmbeC1.c1,1998,0414:30:00,30 ,118.2818,848.7755, 598.963, 269.741
sgpcmbeC1.c1,1998,0415:30:00,30 ,142.9422,696.1915,509.7649,211.7704
sgpcmbeC1.c1,1998,0416:30:00,30 ,72.97694, 505.002,361.3345,153.8948
sgpcmbeC1.c1,1998,0417:30:00,30 ,11.26468,291.4862,200.7345,91.48093
sgpcmbeC1.c1,1998,0418:30:00,30 ,1.330775,95.16343,49.19864,26.44732
sgpcmbeC1.c1,1998,0419:30:00,30 ,       0,4.416674,0.861175,0.989945
sgpcmbeC1.c1,1998,0420:30:00,30 ,       0,0.425147,0.014172,0.077621
sgpcmbeC1.c1,1998,0421:30:00,30 ,       0,0.117674,0.005608,0.023089
sgpcmbeC1.c1,1998,0422:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0423:30:00,30 ,       0,1.094474, 0.04076,0.200388