datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,03 0:30:00,25 ,       0,1.821621,0.080508,0.364273
sgpcmbeC1.c1,2003,03 1:30:00,25 ,       0,0.254857,0.010304,0.050952
sgpcmbeC1.c1,2003,03 2:30:00,27 ,       0,0.836097,0.031097,0.160882
sgpcmbeC1.c1,2003,03 3:30:00,26 ,       0,0.257788, 0.01306,0.052424
sgpcmbeC1.c1,2003,03 4:30:00,29 ,       0,3.613438,0.134386,0.671186
sgpcmbeC1.c1,2003,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,03 6:30:00,31 ,0.026941,33.51005,6.365489,9.598452
sgpcmbeC1.c1,2003,03 7:30:00,31 ,10.44576,211.3987,82.75098,67.43568
sgpcmbeC1.c1,2003,03 8:30:00,31 ,27.89142,442.0228,235.0732,134.3636
sgpcmbeC1.c1,2003,03 9:30:00,31 ,41.91597,  648.22,358.7702,198.8678
sgpcmbeC1.c1,2003,0310:30:00,31 ,62.67775, 810.516,476.5747,240.5459
sgpcmbeC1.c1,2003,0311:30:00,31 ,69.03515,914.2856,565.4943,264.4522
sgpcmbeC1.c1,2003,0312:30:00,31 ,118.2901,950.4022,651.8646,267.2092
sgpcmbeC1.c1,2003,0313:30:00,31 , 87.5011,919.2826,657.1931,260.3657
sgpcmbeC1.c1,2003,0314:30:00,31 ,79.37129, 827.588,570.5534,236.9999
sgpcmbeC1.c1,2003,0315:30:00,31 ,38.27935,672.2149,450.4357,190.3527
sgpcmbeC1.c1,2003,0316:30:00,31 ,17.62168,473.6381,291.6484,139.4898
sgpcmbeC1.c1,2003,0317:30:00,31 ,22.84888, 259.568, 141.731,67.66914
sgpcmbeC1.c1,2003,0318:30:00,31 ,1.067436,44.80414,  19.458,13.42165
sgpcmbeC1.c1,2003,0319:30:00,31 ,       0,2.466897,0.617241,0.849446
sgpcmbeC1.c1,2003,0320:30:00,31 ,       0, 3.34527,0.184761,  0.6232
sgpcmbeC1.c1,2003,0321:30:00,28 ,       0,2.796056,0.149463,0.541281
sgpcmbeC1.c1,2003,0322:30:00,27 ,       0,0.973387,0.079197,0.207887
sgpcmbeC1.c1,2003,0323:30:00,26 ,       0,  0.1471, 0.01752,0.042869