datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,01 0:30:00,26 ,0.293073,2.802467,1.033789,0.564083
sgpcmbeC1.c1,2004,01 1:30:00,26 ,0.254269,2.936506,1.036343,0.584634
sgpcmbeC1.c1,2004,01 2:30:00,25 ,0.272882,3.060961,1.043478, 0.59705
sgpcmbeC1.c1,2004,01 3:30:00,25 ,0.292676,2.926134,1.027904,0.566596
sgpcmbeC1.c1,2004,01 4:30:00,25 ,0.275386,3.024834,1.026424,0.573728
sgpcmbeC1.c1,2004,01 5:30:00,25 ,0.281266,3.443737,1.040699,0.629795
sgpcmbeC1.c1,2004,01 6:30:00,25 ,0.282138,3.435462,1.024535,0.615921
sgpcmbeC1.c1,2004,01 7:30:00,26 ,0.306684,3.303469,1.084562,0.699317
sgpcmbeC1.c1,2004,01 8:30:00,25 ,0.336299,2.994318,1.077548,0.649896
sgpcmbeC1.c1,2004,01 9:30:00,27 ,0.362057,2.853849,1.054742,0.596688
sgpcmbeC1.c1,2004,0110:30:00,28 ,0.388723,2.820702,1.031905,0.590706
sgpcmbeC1.c1,2004,0111:30:00,28 ,0.383874,2.751419,1.019621,0.566243
sgpcmbeC1.c1,2004,0112:30:00,28 ,0.377206,2.825342,1.018034,0.562022
sgpcmbeC1.c1,2004,0113:30:00,28 ,0.371637,2.912235, 1.00951, 0.56821
sgpcmbeC1.c1,2004,0114:30:00,27 , 0.37232,2.238439,0.929588,0.389992
sgpcmbeC1.c1,2004,0115:30:00,27 ,0.350845, 2.12455,0.946703,0.382916
sgpcmbeC1.c1,2004,0116:30:00,27 ,0.348193,2.209381,0.967892,  0.4096
sgpcmbeC1.c1,2004,0117:30:00,27 ,0.363039,2.303763, 0.99194,0.436739
sgpcmbeC1.c1,2004,0118:30:00,27 ,0.365427,2.211814,1.020665,0.476056
sgpcmbeC1.c1,2004,0119:30:00,27 ,0.353427,2.380158,1.027261,0.499148
sgpcmbeC1.c1,2004,0120:30:00,27 ,0.349392,2.369477,1.037887,0.523591
sgpcmbeC1.c1,2004,0121:30:00,27 ,0.343105, 2.50368,1.062253,0.560166
sgpcmbeC1.c1,2004,0122:30:00,27 ,0.353993,2.597352,1.083455,0.590328
sgpcmbeC1.c1,2004,0123:30:00,27 , 0.30844, 2.67339,1.070835,0.576804