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, 10.4925,1.541567,2.183396
sgpcmbeC1.c1,2007,12 8:30:00,30 ,       0,117.6012, 35.7278,40.69336
sgpcmbeC1.c1,2007,12 9:30:00,30 ,0.019112,262.5937,99.40152,104.3555
sgpcmbeC1.c1,2007,1210:30:00,30 ,0.075726,397.5636,163.7069,167.4208
sgpcmbeC1.c1,2007,1211:30:00,30 ,0.038605,474.8259,213.7171,207.8351
sgpcmbeC1.c1,2007,1212:30:00,30 ,0.106648, 495.205, 218.328,217.7218
sgpcmbeC1.c1,2007,1213:30:00,30 ,       0,452.2495, 210.547,203.4997
sgpcmbeC1.c1,2007,1214:30:00,30 ,0.024067,372.7146,161.7395,157.1839
sgpcmbeC1.c1,2007,1215:30:00,30 ,0.041702,237.7309,96.27424,93.71429
sgpcmbeC1.c1,2007,1216:30:00,30 ,0.002119,92.28378, 31.5742,33.28998
sgpcmbeC1.c1,2007,1217:30:00,30 ,0.050894,4.161178,1.156981,1.145969
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.c1,2007,1222:30:00,18 ,       0,0.105198, 0.00598,0.024768
sgpcmbeC1.c1,2007,1223:30:00,15 ,       0,0.649415,0.050762,0.168106