datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,12 0:30:00,25 ,       0,709.1581,79.07621,172.8944
sgpcmbeC1.c1,2002,12 1:30:00,25 ,       0,492.8546,68.21119,141.3995
sgpcmbeC1.c1,2002,12 2:30:00,25 ,       0,446.0869,58.96414, 124.537
sgpcmbeC1.c1,2002,12 3:30:00,25 ,       0, 478.347,49.59029,109.5513
sgpcmbeC1.c1,2002,12 4:30:00,25 ,       0,510.8683,44.41698,109.2342
sgpcmbeC1.c1,2002,12 5:30:00,25 ,       0,474.0581,61.10588,115.7781
sgpcmbeC1.c1,2002,12 6:30:00,24 ,       0,367.3381,59.59236,100.8575
sgpcmbeC1.c1,2002,12 7:30:00,24 ,       0,378.1302,62.11011,111.3046
sgpcmbeC1.c1,2002,12 8:30:00,23 ,       0,  344.08,  54.488,97.07631
sgpcmbeC1.c1,2002,12 9:30:00,26 ,       0,251.7759,44.13884,74.66601
sgpcmbeC1.c1,2002,1210:30:00,26 ,       0,327.1864,47.00816,88.98168
sgpcmbeC1.c1,2002,1211:30:00,26 ,       0,408.6947,48.39904,94.73439
sgpcmbeC1.c1,2002,1212:30:00,26 ,       0,673.2913,57.26721,139.3583
sgpcmbeC1.c1,2002,1213:30:00,26 ,0.022449,778.5379,82.66988,205.4082
sgpcmbeC1.c1,2002,1214:30:00,24 ,0.016916,521.6153,49.06502,110.6435
sgpcmbeC1.c1,2002,1215:30:00,24 ,       0,837.0831,68.40448,171.0048
sgpcmbeC1.c1,2002,1216:30:00,24 ,0.143028, 953.993,70.22643,194.6196
sgpcmbeC1.c1,2002,1217:30:00,24 ,0.070815,561.1427,54.95497,118.7625
sgpcmbeC1.c1,2002,1218:30:00,24 , 0.24659,197.9358,33.27254,57.15068
sgpcmbeC1.c1,2002,1219:30:00,24 ,0.073901,272.7173,39.24083,74.58648
sgpcmbeC1.c1,2002,1220:30:00,25 ,0.167313,571.6263, 75.2318,153.7781
sgpcmbeC1.c1,2002,1221:30:00,25 ,0.018712,411.3755,61.95028,118.0855
sgpcmbeC1.c1,2002,1222:30:00,25 ,0.021713,466.0011,  55.026, 121.072
sgpcmbeC1.c1,2002,1223:30:00,25 ,0.001577,582.8857, 67.2454,142.5717