datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,03 0:30:00,31 ,       0,1.808679,0.271624,0.514303
sgpcmbeC1.c1,2005,03 1:30:00,31 ,       0,2.164152,0.232416,0.533394
sgpcmbeC1.c1,2005,03 2:30:00,31 ,       0,2.069536,0.247423,0.569494
sgpcmbeC1.c1,2005,03 3:30:00,31 ,       0,1.926998,0.163799,0.439744
sgpcmbeC1.c1,2005,03 4:30:00,31 ,       0,0.323037,0.029484,0.091865
sgpcmbeC1.c1,2005,03 5:30:00,31 ,       0,2.511832,0.182537,0.536728
sgpcmbeC1.c1,2005,03 6:30:00,31 ,0.615276, 32.3056,6.454922,7.740388
sgpcmbeC1.c1,2005,03 7:30:00,31 ,6.397675,204.5475,84.92526,49.87935
sgpcmbeC1.c1,2005,03 8:30:00,31 ,24.97353,415.6748,236.2127, 120.938
sgpcmbeC1.c1,2005,03 9:30:00,31 , 67.5994,633.3007,378.2978,171.2344
sgpcmbeC1.c1,2005,0310:30:00,31 ,66.09543,777.2051,517.3788,224.3619
sgpcmbeC1.c1,2005,0311:30:00,31 ,124.8711, 886.825,622.4253,249.1021
sgpcmbeC1.c1,2005,0312:30:00,31 ,119.0999,901.5737,665.3796,244.6015
sgpcmbeC1.c1,2005,0313:30:00,31 , 119.991,911.5732,639.2074,232.2893
sgpcmbeC1.c1,2005,0314:30:00,31 ,112.4883,819.1697,571.6064,197.5901
sgpcmbeC1.c1,2005,0315:30:00,31 , 43.2718,667.8174,  447.86,164.7598
sgpcmbeC1.c1,2005,0316:30:00,31 ,36.13471,456.7401,284.6837,127.5574
sgpcmbeC1.c1,2005,0317:30:00,31 ,11.26503,231.4685, 127.763,63.36397
sgpcmbeC1.c1,2005,0318:30:00,31 ,3.655631,42.54696,18.07232,10.64435
sgpcmbeC1.c1,2005,0319:30:00,31 ,       0,2.537357,0.381212,0.662898
sgpcmbeC1.c1,2005,0320:30:00,31 ,       0,1.883092,0.293369,0.506197
sgpcmbeC1.c1,2005,0321:30:00,31 ,       0,1.739315,0.260715,0.478109
sgpcmbeC1.c1,2005,0322:30:00,31 ,       0, 2.07043,0.252264, 0.57298
sgpcmbeC1.c1,2005,0323:30:00,31 ,       0,2.744944,0.365016,0.658114