datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,07 0:30:00,21 ,       0,138.9895,12.36715,33.58891
sgpcmbeC1.c1,2001,07 1:30:00,21 ,       0,181.2289,15.30804,40.44827
sgpcmbeC1.c1,2001,07 2:30:00,21 ,       0,165.0379,24.10028,47.73434
sgpcmbeC1.c1,2001,07 3:30:00,21 ,       0, 159.494,18.81953,43.85663
sgpcmbeC1.c1,2001,07 4:30:00,21 ,       0,145.7083,15.35604, 33.9249
sgpcmbeC1.c1,2001,07 5:30:00,21 ,       0,84.86553,6.679517,18.55061
sgpcmbeC1.c1,2001,07 6:30:00,20 ,       0,140.4593,13.50482,35.19988
sgpcmbeC1.c1,2001,07 7:30:00,21 ,       0,108.8886,8.996672,25.40251
sgpcmbeC1.c1,2001,07 8:30:00,22 ,       0,145.8417,18.50381,38.86877
sgpcmbeC1.c1,2001,07 9:30:00,22 ,       0,260.4741,22.96763,60.93039
sgpcmbeC1.c1,2001,0710:30:00,22 ,       0,51.52839,4.385318,11.40561
sgpcmbeC1.c1,2001,0711:30:00,22 ,       0,25.39562,2.002322,5.495725
sgpcmbeC1.c1,2001,0712:30:00,21 ,       0,43.67273,4.536866,11.68647
sgpcmbeC1.c1,2001,0713:30:00,22 ,       0,35.17265,5.604677, 10.6991
sgpcmbeC1.c1,2001,0714:30:00,21 ,       0,48.13119,5.088124,12.31809
sgpcmbeC1.c1,2001,0715:30:00,21 ,       0,38.99223,4.863053,11.68205
sgpcmbeC1.c1,2001,0716:30:00,21 ,       0,72.15273,4.685479,15.77411
sgpcmbeC1.c1,2001,0717:30:00,21 ,       0,30.70732,4.800856,10.28847
sgpcmbeC1.c1,2001,0718:30:00,21 ,       0,157.2396,8.972912, 34.1121
sgpcmbeC1.c1,2001,0719:30:00,21 ,       0,43.10002,3.410862,9.490363
sgpcmbeC1.c1,2001,0720:30:00,21 ,       0,88.78574,6.722285, 19.3059
sgpcmbeC1.c1,2001,0721:30:00,21 ,       0,62.86736,6.063007,15.05916
sgpcmbeC1.c1,2001,0722:30:00,21 ,       0,134.0277,7.918874,28.97548
sgpcmbeC1.c1,2001,0723:30:00,21 ,       0,67.73598,8.240833,19.72581