datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,01 0:30:00,21 ,       0,0.331927,0.015806,0.072432
sgpcmbeC1.c1,2007,01 1:30:00,20 ,       0, 1.52205,0.111515,0.367749
sgpcmbeC1.c1,2007,01 2:30:00,17 ,       0,1.568036,0.197591,0.485625
sgpcmbeC1.c1,2007,01 3:30:00,18 ,       0,2.951177,0.402937,  0.9409
sgpcmbeC1.c1,2007,01 4:30:00,16 ,       0,3.357269,0.605553,1.302632
sgpcmbeC1.c1,2007,01 5:30:00,17 ,       0,3.353795,0.392584, 1.10824
sgpcmbeC1.c1,2007,01 6:30:00,23 ,       0,3.450978,0.208702,0.756703
sgpcmbeC1.c1,2007,01 7:30:00,31 ,       0,9.632794,3.611246,2.896247
sgpcmbeC1.c1,2007,01 8:30:00,31 ,4.286021,143.6748,78.63183,43.28128
sgpcmbeC1.c1,2007,01 9:30:00,31 ,12.52325, 325.466,207.6525,103.4618
sgpcmbeC1.c1,2007,0110:30:00,31 ,28.88273,496.8935,323.5215,156.7031
sgpcmbeC1.c1,2007,0111:30:00,31 ,50.48832,606.8404,408.0461,185.8024
sgpcmbeC1.c1,2007,0112:30:00,31 ,64.30567,657.8734, 446.354,206.8198
sgpcmbeC1.c1,2007,0113:30:00,31 ,69.21481,628.0576,436.0029,185.7155
sgpcmbeC1.c1,2007,0114:30:00,31 ,90.30521,530.0584,374.2614, 150.607
sgpcmbeC1.c1,2007,0115:30:00,31 ,46.01115,393.8686,254.3251,115.9816
sgpcmbeC1.c1,2007,0116:30:00,31 ,13.73254,216.4023,118.8294,61.05492
sgpcmbeC1.c1,2007,0117:30:00,31 ,       0,50.30577,18.14805,13.78612
sgpcmbeC1.c1,2007,0118:30:00,28 ,       0,3.327544,0.223835,0.646755
sgpcmbeC1.c1,2007,0119:30:00,26 ,       0,3.412271, 0.20369,0.695651
sgpcmbeC1.c1,2007,0120:30:00,20 ,       0,0.327746,0.016387,0.073286
sgpcmbeC1.c1,2007,0121:30:00,22 ,       0,0.774404,0.067651,0.219164
sgpcmbeC1.c1,2007,0122:30:00,19 ,       0,1.982984, 0.20953,0.594692
sgpcmbeC1.c1,2007,0123:30:00,20 ,       0,1.393069,0.092933,0.319007