datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,02 0:30:00,15 ,       0,30.95055,4.893741,8.538379
sgpcmbeC1.c1,2002,02 1:30:00,15 ,       0,27.36967,4.240942,7.835277
sgpcmbeC1.c1,2002,02 2:30:00,15 ,       0,24.67664,3.919699, 7.21847
sgpcmbeC1.c1,2002,02 3:30:00,15 ,       0,37.91201,7.683894,11.87603
sgpcmbeC1.c1,2002,02 4:30:00,15 ,       0,43.16366,5.951921,11.58562
sgpcmbeC1.c1,2002,02 5:30:00,15 ,       0,53.09918,5.336888,13.73176
sgpcmbeC1.c1,2002,02 6:30:00,15 ,       0,61.35184,6.720751,16.23402
sgpcmbeC1.c1,2002,02 7:30:00,15 ,       0,57.40168,5.103724,14.84986
sgpcmbeC1.c1,2002,02 8:30:00,15 ,       0,56.45599,4.516533,14.52735
sgpcmbeC1.c1,2002,02 9:30:00,17 ,       0,56.03937,3.970497, 13.4648
sgpcmbeC1.c1,2002,0210:30:00,18 ,       0,52.54758,4.519224, 12.3341
sgpcmbeC1.c1,2002,0211:30:00,17 ,       0, 22.0038,4.310494,6.396452
sgpcmbeC1.c1,2002,0212:30:00,17 ,       0,27.10983,4.672054,6.907334
sgpcmbeC1.c1,2002,0213:30:00,17 ,       0, 26.4432,5.789516,8.137217
sgpcmbeC1.c1,2002,0214:30:00,17 ,       0,36.10591,5.740589,8.946019
sgpcmbeC1.c1,2002,0215:30:00,15 ,       0,13.55218,3.910345,4.388263
sgpcmbeC1.c1,2002,0216:30:00,15 ,       0, 44.7758,7.013883,11.30948
sgpcmbeC1.c1,2002,0217:30:00,15 ,0.022997,97.21205,10.66457,24.37943
sgpcmbeC1.c1,2002,0218:30:00,15 ,0.101081,67.14153,9.364374,16.70611
sgpcmbeC1.c1,2002,0219:30:00,15 ,0.003033,121.4074,12.08133,30.53264
sgpcmbeC1.c1,2002,0220:30:00,15 ,       0, 251.778, 19.9404,64.25501
sgpcmbeC1.c1,2002,0221:30:00,15 ,       0,309.0595,22.92713,79.24455
sgpcmbeC1.c1,2002,0222:30:00,15 ,       0,62.38234,6.098881,16.06035
sgpcmbeC1.c1,2002,0223:30:00,15 ,       0,41.41657,4.722942,10.81303