datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,03 0:30:00,19 ,0.570136,1.622809,1.065605,0.348391
sgpcmbeC1.c1,2002,03 1:30:00,19 ,0.550983,1.517241, 1.05882, 0.33073
sgpcmbeC1.c1,2002,03 2:30:00,19 ,0.549867,1.451498,1.040628,0.297638
sgpcmbeC1.c1,2002,03 3:30:00,18 ,0.521541,1.489699,1.022161,0.303596
sgpcmbeC1.c1,2002,03 4:30:00,18 ,0.531284,1.585946,1.008071,0.313458
sgpcmbeC1.c1,2002,03 5:30:00,17 ,0.531957,1.581015,1.023687,0.300019
sgpcmbeC1.c1,2002,03 6:30:00,17 ,0.518846,1.702923,1.049483,0.314355
sgpcmbeC1.c1,2002,03 7:30:00,17 ,0.478184,1.727571,1.054017,0.328503
sgpcmbeC1.c1,2002,03 8:30:00,17 ,0.492038,1.671835,1.036599,0.324356
sgpcmbeC1.c1,2002,03 9:30:00,22 ,0.454989,2.206655,1.044098, 0.40957
sgpcmbeC1.c1,2002,0310:30:00,22 ,0.416254,2.171978,1.074562,0.399865
sgpcmbeC1.c1,2002,0311:30:00,22 ,0.418794,2.317892,1.096749,0.415942
sgpcmbeC1.c1,2002,0312:30:00,23 ,0.412259,2.711703,1.207149,0.533904
sgpcmbeC1.c1,2002,0313:30:00,23 ,0.409325,2.341341,1.150378,0.398135
sgpcmbeC1.c1,2002,0314:30:00,22 ,0.406269,2.213808, 1.18583,0.388034
sgpcmbeC1.c1,2002,0315:30:00,21 ,0.401109,2.181436,1.189596,0.391526
sgpcmbeC1.c1,2002,0316:30:00,22 ,0.416994,2.144624,1.148323,0.380943
sgpcmbeC1.c1,2002,0317:30:00,23 ,0.449312,3.554103,1.267912,0.615543
sgpcmbeC1.c1,2002,0318:30:00,23 ,0.484125,2.958482,1.219152,0.518454
sgpcmbeC1.c1,2002,0319:30:00,23 ,0.496353,2.670753, 1.23769,0.505891
sgpcmbeC1.c1,2002,0320:30:00,23 ,0.529437,2.467852,1.268038, 0.53335
sgpcmbeC1.c1,2002,0321:30:00,23 ,0.565399,2.325892,1.214638,0.451151
sgpcmbeC1.c1,2002,0322:30:00,21 ,0.602532,  2.2735,1.166947,0.448158
sgpcmbeC1.c1,2002,0323:30:00,20 , 0.58546,1.669877,1.096072,0.357939