datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,12 0:30:00,20 ,       0,350.9896, 32.3006,85.78471
sgpcmbeC1.c1,2001,12 1:30:00,18 ,       0,289.7316,40.09796,93.95351
sgpcmbeC1.c1,2001,12 2:30:00,18 ,       0,301.7102,35.97034,87.43521
sgpcmbeC1.c1,2001,12 3:30:00,18 ,       0,348.1425,37.27473, 103.366
sgpcmbeC1.c1,2001,12 4:30:00,18 ,       0,348.8268,41.60154,102.2466
sgpcmbeC1.c1,2001,12 5:30:00,18 ,       0,243.8496,29.89143,68.31583
sgpcmbeC1.c1,2001,12 6:30:00,18 ,       0,288.3294,31.76989,77.70563
sgpcmbeC1.c1,2001,12 7:30:00,18 ,       0, 254.994,31.66399,70.32256
sgpcmbeC1.c1,2001,12 8:30:00,19 ,       0,335.4584,40.67396,92.97682
sgpcmbeC1.c1,2001,12 9:30:00,24 ,       0,650.2847,60.12826,172.4841
sgpcmbeC1.c1,2001,1210:30:00,24 ,       0,567.8082,60.22906,162.1961
sgpcmbeC1.c1,2001,1211:30:00,24 ,       0, 538.592,51.06063,137.4603
sgpcmbeC1.c1,2001,1212:30:00,24 ,       0, 552.334,39.89832,119.3361
sgpcmbeC1.c1,2001,1213:30:00,24 ,       0,830.9188,52.04536,171.6735
sgpcmbeC1.c1,2001,1214:30:00,24 ,       0,511.3957,72.40464,145.5779
sgpcmbeC1.c1,2001,1215:30:00,23 ,       0, 475.945,75.39646, 149.892
sgpcmbeC1.c1,2001,1216:30:00,23 ,       0,669.0771,76.95446,180.2415
sgpcmbeC1.c1,2001,1217:30:00,23 ,0.217231,628.1736,71.72104,165.3159
sgpcmbeC1.c1,2001,1218:30:00,22 ,0.014737,758.6725,50.91988,167.5655
sgpcmbeC1.c1,2001,1219:30:00,21 ,       0,645.7877,47.75529,144.3611
sgpcmbeC1.c1,2001,1220:30:00,21 ,       0,232.6537,29.68697,71.40609
sgpcmbeC1.c1,2001,1221:30:00,21 ,0.020222,215.4986,23.72894,58.89504
sgpcmbeC1.c1,2001,1222:30:00,20 ,       0,512.2726,42.01538,122.5856
sgpcmbeC1.c1,2001,1223:30:00,20 ,       0,315.2885, 35.1995,86.64233