datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,02 0:30:00,19 ,0.558806,271.9904,20.29426,61.53972
sgpcmbeC1.c1,2006,02 1:30:00,19 ,0.512621,273.1854,21.52875,62.19481
sgpcmbeC1.c1,2006,02 2:30:00,17 ,0.084709,69.17807,9.272182,17.12044
sgpcmbeC1.c1,2006,02 3:30:00,17 ,0.241004,68.41045,12.81978,18.85944
sgpcmbeC1.c1,2006,02 4:30:00,17 ,0.080228,85.66891,15.68719,26.89725
sgpcmbeC1.c1,2006,02 5:30:00,17 ,0.153996,83.60334,12.51988, 23.0562
sgpcmbeC1.c1,2006,02 6:30:00,17 ,0.156395,61.47635, 10.0027,15.84133
sgpcmbeC1.c1,2006,02 7:30:00,17 ,0.063519,79.85402,9.716215,19.39391
sgpcmbeC1.c1,2006,02 8:30:00,18 ,       0,71.25455,  7.4449, 17.0085
sgpcmbeC1.c1,2006,02 9:30:00,20 ,       0,42.90542,9.483075,13.37648
sgpcmbeC1.c1,2006,0210:30:00,20 ,0.001817,92.93708,11.92075,21.73192
sgpcmbeC1.c1,2006,0211:30:00,20 ,0.040885,117.5813,12.49241,27.89889
sgpcmbeC1.c1,2006,0212:30:00,20 ,0.099643,116.5098,11.70071,27.27972
sgpcmbeC1.c1,2006,0213:30:00,20 ,0.136326,136.1011,11.35521,30.93462
sgpcmbeC1.c1,2006,0214:30:00,19 ,0.080802,137.4754,10.90037,31.26719
sgpcmbeC1.c1,2006,0215:30:00,19 ,0.033394,119.6852,10.71395,27.82798
sgpcmbeC1.c1,2006,0216:30:00,19 ,0.040633, 160.903,13.61931,36.75109
sgpcmbeC1.c1,2006,0217:30:00,19 ,0.027407,131.1891,11.76206,29.73422
sgpcmbeC1.c1,2006,0218:30:00,18 ,0.811785, 98.2176,14.34603,25.57362
sgpcmbeC1.c1,2006,0219:30:00,18 ,0.826787, 102.923,16.13886, 30.0118
sgpcmbeC1.c1,2006,0220:30:00,18 , 0.45277,138.7984,15.41985,33.14757
sgpcmbeC1.c1,2006,0221:30:00,18 , 0.73413,160.2002,14.44696,36.99748
sgpcmbeC1.c1,2006,0222:30:00,18 ,0.430857,155.8417,12.85715,35.87046
sgpcmbeC1.c1,2006,0223:30:00,18 ,1.062039,224.0163, 17.5501, 51.9461