datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,03 0:30:00,31 ,       0, 0.19982,0.016969,0.047293
sgpcmbeC1.c1,2000,03 1:30:00,30 ,       0,0.278061,0.012906,0.053892
sgpcmbeC1.c1,2000,03 2:30:00,30 ,       0,0.238878,0.012449,0.045459
sgpcmbeC1.c1,2000,03 3:30:00,30 ,       0, 0.17865,0.008112,0.034306
sgpcmbeC1.c1,2000,03 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,03 5:30:00,31 ,       0,0.023231,0.000749,0.004172
sgpcmbeC1.c1,2000,03 6:30:00,31 ,       0,6.021904,1.491614,2.058449
sgpcmbeC1.c1,2000,03 7:30:00,30 ,0.046922,32.63386, 7.84284,6.993321
sgpcmbeC1.c1,2000,03 8:30:00,31 ,0.674473,36.15186,10.18463, 8.62423
sgpcmbeC1.c1,2000,03 9:30:00,31 ,0.771829,35.10299,10.51593, 8.46347
sgpcmbeC1.c1,2000,0310:30:00,31 ,0.504338,32.51555,9.433937,7.214793
sgpcmbeC1.c1,2000,0311:30:00,31 ,1.166625, 53.4894,16.42231,15.43376
sgpcmbeC1.c1,2000,0312:30:00,31 ,0.251427,48.12826,13.85915,13.32632
sgpcmbeC1.c1,2000,0313:30:00,31 ,0.930571,55.99166,17.97834,17.24954
sgpcmbeC1.c1,2000,0314:30:00,31 ,  1.3285,52.03328,18.33964,14.46015
sgpcmbeC1.c1,2000,0315:30:00,31 ,0.785677,45.67546,16.78762,14.39906
sgpcmbeC1.c1,2000,0316:30:00,31 , 0.87106, 41.1068,12.48994,9.649712
sgpcmbeC1.c1,2000,0317:30:00,31 ,0.719711, 21.6355,10.85172,6.339131
sgpcmbeC1.c1,2000,0318:30:00,31 ,  0.1881,8.714612,3.400829,2.880656
sgpcmbeC1.c1,2000,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0320:30:00,31 ,       0,0.118656,0.003828,0.021311
sgpcmbeC1.c1,2000,0321:30:00,31 ,       0,0.193815,0.008427,0.036473
sgpcmbeC1.c1,2000,0322:30:00,31 ,       0,0.098189,0.004781,0.019523
sgpcmbeC1.c1,2000,0323:30:00,31 ,       0,0.207496, 0.01752,0.054452