datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,04 0:30:00,30 ,       0,0.012045,0.000401,0.002199
sgpcmbeC1.c1,2003,04 1:30:00,30 ,       0,0.049648,0.001655,0.009064
sgpcmbeC1.c1,2003,04 2:30:00,30 ,       0,0.385158,0.014964, 0.07088
sgpcmbeC1.c1,2003,04 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 4:30:00,30 ,       0, 0.17229,0.005743,0.031456
sgpcmbeC1.c1,2003,04 5:30:00,30 ,       0,1.907676,0.359788,0.550435
sgpcmbeC1.c1,2003,04 6:30:00,30 , 0.67996,15.35458,9.193779,4.611969
sgpcmbeC1.c1,2003,04 7:30:00,30 ,2.226439, 27.7502,15.01892,5.494789
sgpcmbeC1.c1,2003,04 8:30:00,30 ,2.736257,35.76718, 14.8408,7.017088
sgpcmbeC1.c1,2003,04 9:30:00,30 ,2.110434,40.13053,16.21811,10.80695
sgpcmbeC1.c1,2003,0410:30:00,30 ,5.270313,60.27907,16.06332,14.13839
sgpcmbeC1.c1,2003,0411:30:00,30 ,1.985974,60.58466, 16.6848,16.57019
sgpcmbeC1.c1,2003,0412:30:00,30 ,0.501881,62.16304, 17.1296, 17.0963
sgpcmbeC1.c1,2003,0413:30:00,30 , 2.82985,57.21085,18.88352,18.05216
sgpcmbeC1.c1,2003,0414:30:00,30 ,2.624257,75.17941,19.34504,17.78555
sgpcmbeC1.c1,2003,0415:30:00,30 ,3.335149,46.95543,19.31803,12.79266
sgpcmbeC1.c1,2003,0416:30:00,30 , 3.89147,46.21523,18.52756,9.880924
sgpcmbeC1.c1,2003,0417:30:00,30 ,1.572584,26.73411,15.42263,5.180308
sgpcmbeC1.c1,2003,0418:30:00,30 , 1.49663,16.31787,10.04558,4.104294
sgpcmbeC1.c1,2003,0419:30:00,29 ,       0,1.411248,0.177918, 0.31182
sgpcmbeC1.c1,2003,0420:30:00,30 ,       0,0.094612,0.003154,0.017274
sgpcmbeC1.c1,2003,0421:30:00,30 ,       0,0.049666,0.001725,0.009063
sgpcmbeC1.c1,2003,0422:30:00,30 ,       0, 0.19798,0.006599,0.036146
sgpcmbeC1.c1,2003,0423:30:00,30 ,       0,0.132794,0.004617,0.024231