datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,16 ,       0,0.283863,0.028625,0.074407
sgpcmbeC1.c1,2007,12 1:30:00,17 ,       0,0.156696,0.009217,0.038004
sgpcmbeC1.c1,2007,12 2:30:00,17 ,       0,0.695186,0.066798, 0.19387
sgpcmbeC1.c1,2007,12 3:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 4:30:00,17 ,       0,0.872031,0.051296,0.211499
sgpcmbeC1.c1,2007,12 5:30:00,19 ,       0,0.747241,0.039328,0.171429
sgpcmbeC1.c1,2007,12 6:30:00,27 ,       0, 0.44538,0.016496,0.085713
sgpcmbeC1.c1,2007,12 7:30:00,30 ,       0,19.61104,4.243077,4.601344
sgpcmbeC1.c1,2007,12 8:30:00,30 ,2.446991,153.6936,65.76665,50.02366
sgpcmbeC1.c1,2007,12 9:30:00,30 ,13.56175, 311.913,163.7759,111.9758
sgpcmbeC1.c1,2007,1210:30:00,30 ,19.34024,454.4696,250.7566,171.2227
sgpcmbeC1.c1,2007,1211:30:00,30 ,28.42909, 536.405,307.3214,210.4144
sgpcmbeC1.c1,2007,1212:30:00,30 ,25.43098,554.4218,322.5354,214.0797
sgpcmbeC1.c1,2007,1213:30:00,30 ,36.78796,523.4074,313.3282,199.9941
sgpcmbeC1.c1,2007,1214:30:00,30 ,23.33037, 426.107,253.5243,158.7288
sgpcmbeC1.c1,2007,1215:30:00,30 , 16.3322,281.9765,163.7462,97.05007
sgpcmbeC1.c1,2007,1216:30:00,30 ,5.422578,121.0589,62.54933,40.71307
sgpcmbeC1.c1,2007,1217:30:00,30 ,0.050894,8.449587,3.247738,2.601833
sgpcmbeC1.c1,2007,1218:30:00,28 ,       0,2.995179,0.417895, 0.78899
sgpcmbeC1.c1,2007,1219:30:00,26 ,       0,2.484207,0.352414,0.679766
sgpcmbeC1.c1,2007,1220:30:00,22 ,       0,1.032094,0.098632,0.265526
sgpcmbeC1.c1,2007,1221:30:00,19 ,       0,0.417821,0.021991,0.095855
sgpcmbeC1.c1,2007,1222:30:00,19 ,       0,3.130276,0.170416,0.717167
sgpcmbeC1.c1,2007,1223:30:00,15 ,       0,0.649415,0.050762,0.168106