datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,12 0:30:00,31 ,0.307209,4.434389,1.651438,1.063832
sgpcmbeC1.c1,2004,12 1:30:00,31 ,0.463023,4.005094,1.692147,1.159881
sgpcmbeC1.c1,2004,12 2:30:00,31 ,0.296902,3.821845,1.277199,0.813828
sgpcmbeC1.c1,2004,12 3:30:00,31 ,0.366614,6.255074,1.886348,1.686946
sgpcmbeC1.c1,2004,12 4:30:00,31 ,0.328781,4.384757,1.630182,1.033727
sgpcmbeC1.c1,2004,12 5:30:00,31 ,0.297005,5.133067,1.402376,1.043794
sgpcmbeC1.c1,2004,12 6:30:00,31 ,0.434422,4.375299,1.558577,0.937553
sgpcmbeC1.c1,2004,12 7:30:00,31 ,0.468399,4.909595,1.836397,1.046021
sgpcmbeC1.c1,2004,12 8:30:00,31 ,0.799685,7.144832,4.596302,1.609577
sgpcmbeC1.c1,2004,12 9:30:00,31 ,0.454297,11.11671, 5.36902,2.400946
sgpcmbeC1.c1,2004,1210:30:00,31 ,0.462954,11.20996,5.258196, 2.17044
sgpcmbeC1.c1,2004,1211:30:00,31 ,0.932118,6.122149,3.992608,1.429549
sgpcmbeC1.c1,2004,1212:30:00,31 ,1.064847,7.799725,3.000535,1.438043
sgpcmbeC1.c1,2004,1213:30:00,31 ,0.979364,8.325784,2.673348,1.757907
sgpcmbeC1.c1,2004,1214:30:00,31 ,0.706019,5.252647,2.172407,0.883202
sgpcmbeC1.c1,2004,1215:30:00,31 ,0.594358, 6.60308,3.063171,1.483371
sgpcmbeC1.c1,2004,1216:30:00,31 ,0.959064,11.85567,5.706553,2.353271
sgpcmbeC1.c1,2004,1217:30:00,31 ,0.489061,8.945801, 4.04867,  1.8757
sgpcmbeC1.c1,2004,1218:30:00,31 ,0.407159,5.663327,2.413775,1.239183
sgpcmbeC1.c1,2004,1219:30:00,31 ,0.665848,7.782263,2.109413,1.681187
sgpcmbeC1.c1,2004,1220:30:00,31 , 0.63265,4.244068,1.857042,0.986447
sgpcmbeC1.c1,2004,1221:30:00,31 ,0.306132,6.357548,1.797859,1.477401
sgpcmbeC1.c1,2004,1222:30:00,31 ,0.558917, 3.82685,1.683417,0.935072
sgpcmbeC1.c1,2004,1223:30:00,31 ,0.276617,5.298263,1.864803,1.241947