datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,05 0:30:00,28 ,       0,375.7456,18.40615,71.34895
sgpcmbeC1.c1,1998,05 1:30:00,28 ,       0,66.83696,6.223359,15.46613
sgpcmbeC1.c1,1998,05 2:30:00,29 ,       0,165.8505,16.45774,38.61743
sgpcmbeC1.c1,1998,05 3:30:00,27 ,       0,128.3814,12.09118,29.19139
sgpcmbeC1.c1,1998,05 4:30:00,25 ,       0,256.8153,14.01806,51.29576
sgpcmbeC1.c1,1998,05 5:30:00,25 ,       0,285.6257,18.40766,57.23641
sgpcmbeC1.c1,1998,05 6:30:00,26 ,       0,386.7128,20.07983,75.43356
sgpcmbeC1.c1,1998,05 7:30:00,27 ,       0,253.6044,16.59384,50.43377
sgpcmbeC1.c1,1998,05 8:30:00,26 ,       0,43.20018,5.410104,10.32476
sgpcmbeC1.c1,1998,05 9:30:00,29 ,       0,166.8985,11.93724,32.79539
sgpcmbeC1.c1,1998,0510:30:00,30 ,       0,63.95455,8.336737,15.11988
sgpcmbeC1.c1,1998,0511:30:00,30 ,       0,126.6691, 12.2058,24.83789
sgpcmbeC1.c1,1998,0512:30:00,30 ,       0,114.3206,14.19779,24.19234
sgpcmbeC1.c1,1998,0513:30:00,30 ,       0,232.8577,17.80985,43.30547
sgpcmbeC1.c1,1998,0514:30:00,29 ,       0,123.4649,17.18023,29.76099
sgpcmbeC1.c1,1998,0515:30:00,28 ,       0,314.1067,17.43573,58.77333
sgpcmbeC1.c1,1998,0516:30:00,29 ,       0,404.4886,21.14086,75.24758
sgpcmbeC1.c1,1998,0517:30:00,29 ,       0,140.7242,11.05141, 27.2011
sgpcmbeC1.c1,1998,0518:30:00,29 ,       0,361.9671,  19.258,67.38007
sgpcmbeC1.c1,1998,0519:30:00,29 ,       0,264.0311,17.99119,54.38015
sgpcmbeC1.c1,1998,0520:30:00,29 ,       0,122.0584,8.782277, 25.0543
sgpcmbeC1.c1,1998,0521:30:00,29 ,       0,250.0006,15.69297,49.61909
sgpcmbeC1.c1,1998,0522:30:00,28 ,       0,364.0708,20.63414,70.95836
sgpcmbeC1.c1,1998,0523:30:00,28 ,       0,41.69747,4.016648,8.344194