datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,07 0:30:00,28 ,       0,36.25672,7.285263,8.824637
sgpcmbeC1.c1,2002,07 1:30:00,29 ,       0,105.4286,12.83238, 21.4395
sgpcmbeC1.c1,2002,07 2:30:00,29 ,       0,53.18404,9.271123,12.63616
sgpcmbeC1.c1,2002,07 3:30:00,29 ,       0,32.33677, 9.20349,9.231873
sgpcmbeC1.c1,2002,07 4:30:00,29 ,       0,87.93132,15.70551,21.91445
sgpcmbeC1.c1,2002,07 5:30:00,30 ,       0, 176.623,18.92069,34.18816
sgpcmbeC1.c1,2002,07 6:30:00,29 ,       0,80.77227,12.02929,20.43307
sgpcmbeC1.c1,2002,07 7:30:00,30 ,       0, 144.323,18.24787,31.84438
sgpcmbeC1.c1,2002,07 8:30:00,29 ,       0,200.8164,19.73236,  40.824
sgpcmbeC1.c1,2002,07 9:30:00,30 ,       0,313.6505,27.41244,57.87527
sgpcmbeC1.c1,2002,0710:30:00,30 ,       0,416.3696,28.62993,75.39388
sgpcmbeC1.c1,2002,0711:30:00,29 ,       0, 45.8361,13.35854,13.56771
sgpcmbeC1.c1,2002,0712:30:00,29 ,       0,133.8848,18.52506,26.40798
sgpcmbeC1.c1,2002,0713:30:00,29 ,       0,82.94526,16.92025,19.12051
sgpcmbeC1.c1,2002,0714:30:00,29 ,       0,102.1181,16.78719,21.89418
sgpcmbeC1.c1,2002,0715:30:00,30 ,       0,294.3218,22.28481,53.73221
sgpcmbeC1.c1,2002,0716:30:00,30 ,       0, 155.786,18.84733,29.83798
sgpcmbeC1.c1,2002,0717:30:00,30 ,0.005948,99.52198,15.07388,21.61511
sgpcmbeC1.c1,2002,0718:30:00,29 ,       0,54.87169,11.65114,13.43455
sgpcmbeC1.c1,2002,0719:30:00,30 ,0.018102,61.75494,14.04652,16.41688
sgpcmbeC1.c1,2002,0720:30:00,30 ,       0,111.1291, 18.5994,27.03657
sgpcmbeC1.c1,2002,0721:30:00,30 ,       0,122.9322,18.26326,30.41654
sgpcmbeC1.c1,2002,0722:30:00,29 ,       0,70.87755,11.47966,17.31483
sgpcmbeC1.c1,2002,0723:30:00,29 ,       0, 161.386,14.03032,30.23211