datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,04 0:30:00,29 ,       0,448.5209,25.39606,83.38935
sgpcmbeC1.c1,2003,04 1:30:00,29 ,       0, 125.846,10.89019,24.75262
sgpcmbeC1.c1,2003,04 2:30:00,29 ,       0,491.1197,26.26375,92.87656
sgpcmbeC1.c1,2003,04 3:30:00,27 ,       0, 496.063,29.99149,97.47037
sgpcmbeC1.c1,2003,04 4:30:00,28 ,       0,330.6718,37.28193,78.00943
sgpcmbeC1.c1,2003,04 5:30:00,28 ,       0, 385.487,33.05854,81.07417
sgpcmbeC1.c1,2003,04 6:30:00,27 ,       0,406.7046,36.46031,89.91123
sgpcmbeC1.c1,2003,04 7:30:00,28 ,       0,574.4082,47.72853,117.2122
sgpcmbeC1.c1,2003,04 8:30:00,29 ,       0, 249.244,37.78304,75.11088
sgpcmbeC1.c1,2003,04 9:30:00,30 ,       0,353.5688,42.89937,81.03284
sgpcmbeC1.c1,2003,0410:30:00,30 ,       0,304.6535,45.38211,  81.948
sgpcmbeC1.c1,2003,0411:30:00,30 ,       0,446.7514,58.56311,119.0668
sgpcmbeC1.c1,2003,0412:30:00,30 ,0.007641,433.4124,56.00835,104.6508
sgpcmbeC1.c1,2003,0413:30:00,30 ,0.036853,1176.061,72.11375,220.4309
sgpcmbeC1.c1,2003,0414:30:00,30 ,       0,553.2617,52.47224,119.0723
sgpcmbeC1.c1,2003,0415:30:00,30 ,       0,253.6723,26.90634,53.76283
sgpcmbeC1.c1,2003,0416:30:00,30 ,       0,112.7739,17.43406,29.71872
sgpcmbeC1.c1,2003,0417:30:00,30 ,       0,  472.71,30.53311,90.35717
sgpcmbeC1.c1,2003,0418:30:00,30 ,0.029415,781.0652, 37.6769,141.5588
sgpcmbeC1.c1,2003,0419:30:00,29 ,0.199711,299.7184,23.63647,64.24922
sgpcmbeC1.c1,2003,0420:30:00,28 ,0.044778,106.8677,14.38362,24.38277
sgpcmbeC1.c1,2003,0421:30:00,28 ,0.007087,101.5896,13.19154,23.32497
sgpcmbeC1.c1,2003,0422:30:00,28 ,       0,132.5326,15.29122,30.58889
sgpcmbeC1.c1,2003,0423:30:00,28 ,       0,160.4972,17.59522,33.53333