datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,02 0:30:00,15 ,0.219223,1.384433,0.837821,0.396762
sgpcmbeC1.c1,2002,02 1:30:00,15 ,0.211546,1.314491,0.809275,0.370612
sgpcmbeC1.c1,2002,02 2:30:00,15 ,0.210104,1.357478, 0.80473,0.374074
sgpcmbeC1.c1,2002,02 3:30:00,15 ,0.217198,1.406214,  0.8049,0.383387
sgpcmbeC1.c1,2002,02 4:30:00,15 ,0.229744,1.489388,0.796361,0.373375
sgpcmbeC1.c1,2002,02 5:30:00,15 ,0.243633,1.549438, 0.79802,0.373229
sgpcmbeC1.c1,2002,02 6:30:00,15 ,0.251829,1.563149,0.791296,0.363529
sgpcmbeC1.c1,2002,02 7:30:00,15 ,0.248249,1.589829, 0.77546,0.340476
sgpcmbeC1.c1,2002,02 8:30:00,15 ,0.269567, 1.63753,0.771358,0.340707
sgpcmbeC1.c1,2002,02 9:30:00,17 ,0.201657,1.653759,0.752397, 0.36065
sgpcmbeC1.c1,2002,0210:30:00,18 ,0.238029,1.846927,0.743005, 0.37649
sgpcmbeC1.c1,2002,0211:30:00,17 ,0.277747,1.959857, 0.78168, 0.39459
sgpcmbeC1.c1,2002,0212:30:00,17 ,0.276355,2.034221,0.808332,0.408844
sgpcmbeC1.c1,2002,0213:30:00,17 ,0.272755,2.182333,0.819111,0.431343
sgpcmbeC1.c1,2002,0214:30:00,17 , 0.27774,2.201963,0.833907,0.430364
sgpcmbeC1.c1,2002,0215:30:00,15 ,0.280818,1.124858,0.754778,0.278527
sgpcmbeC1.c1,2002,0216:30:00,15 ,0.278398,1.261465,0.772681,0.314566
sgpcmbeC1.c1,2002,0217:30:00,15 ,0.283355,1.383982,0.794153,0.342555
sgpcmbeC1.c1,2002,0218:30:00,15 ,0.282388,1.522676,0.817864,0.361256
sgpcmbeC1.c1,2002,0219:30:00,15 ,0.262968,1.648918,0.826739,0.383939
sgpcmbeC1.c1,2002,0220:30:00,15 ,0.251663,1.852613,0.839773, 0.43177
sgpcmbeC1.c1,2002,0221:30:00,15 ,0.236179,2.460966,0.873815,0.556733
sgpcmbeC1.c1,2002,0222:30:00,15 ,0.234958,1.836762, 0.84582,0.449266
sgpcmbeC1.c1,2002,0223:30:00,15 ,0.218763,1.514539,0.840045,0.417964