datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,12 0:30:00,27 ,0.309496,2.313941,  0.8749,0.393523
sgpcmbeC1.c1,2004,12 1:30:00,26 ,0.289183,2.116678,0.859395,0.382353
sgpcmbeC1.c1,2004,12 2:30:00,25 , 0.29179,1.965958,0.839155,0.359222
sgpcmbeC1.c1,2004,12 3:30:00,26 ,0.285862,1.820028, 0.84018,0.339385
sgpcmbeC1.c1,2004,12 4:30:00,26 ,0.252532,1.898536,0.850285,0.366557
sgpcmbeC1.c1,2004,12 5:30:00,26 ,0.231504,1.929922,0.836916,0.384285
sgpcmbeC1.c1,2004,12 6:30:00,25 ,0.244435,2.071851, 0.81457,0.398514
sgpcmbeC1.c1,2004,12 7:30:00,24 ,0.243806,2.183342,0.825956,0.428274
sgpcmbeC1.c1,2004,12 8:30:00,25 ,0.217517,2.380236,0.872414,0.471445
sgpcmbeC1.c1,2004,12 9:30:00,27 , 0.21428,2.562367,0.881488,0.480073
sgpcmbeC1.c1,2004,1210:30:00,26 ,0.229064,2.491665,0.870204,0.476437
sgpcmbeC1.c1,2004,1211:30:00,28 ,0.241914,2.258898,0.895012,0.439334
sgpcmbeC1.c1,2004,1212:30:00,28 ,0.242446,2.173988,0.915969,0.440266
sgpcmbeC1.c1,2004,1213:30:00,29 ,0.244761,2.129599,0.940544,0.443136
sgpcmbeC1.c1,2004,1214:30:00,27 ,0.244748, 1.67831,0.913061,0.375685
sgpcmbeC1.c1,2004,1215:30:00,27 ,0.242936,1.658106,0.929886,0.387165
sgpcmbeC1.c1,2004,1216:30:00,27 ,0.233492,1.837511,0.937829,0.408117
sgpcmbeC1.c1,2004,1217:30:00,27 ,0.252123, 2.09578,0.940294,0.431035
sgpcmbeC1.c1,2004,1218:30:00,27 ,0.253281,2.261072,0.935383,0.447021
sgpcmbeC1.c1,2004,1219:30:00,27 ,0.281053,2.425584,0.926293,0.445022
sgpcmbeC1.c1,2004,1220:30:00,27 ,0.284748,2.349501,0.930505,0.428794
sgpcmbeC1.c1,2004,1221:30:00,28 ,0.332902,2.348394,0.975255,0.471395
sgpcmbeC1.c1,2004,1222:30:00,27 ,0.331992,2.386052,0.926429,0.422751
sgpcmbeC1.c1,2004,1223:30:00,27 ,0.319096, 2.37118,0.927415,0.420895