datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,01 0:30:00,20 ,       0,0.024563,0.001228,0.005492
sgpcmbeC1.c1,2000,01 1:30:00,21 ,       0,0.035725,0.001701,0.007796
sgpcmbeC1.c1,2000,01 2:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 3:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 4:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 6:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 7:30:00,29 ,       0,10.60408,1.404498,2.255792
sgpcmbeC1.c1,2000,01 8:30:00,29 ,2.124924,77.88615,23.34956,16.61964
sgpcmbeC1.c1,2000,01 9:30:00,29 ,4.495214,205.1925,60.13234,43.90485
sgpcmbeC1.c1,2000,0110:30:00,29 ,6.980719,315.3784,89.28478,70.20021
sgpcmbeC1.c1,2000,0111:30:00,29 ,11.01831,387.8654,109.3791,84.61896
sgpcmbeC1.c1,2000,0112:30:00,29 ,11.33617,412.6786,119.1342,83.55868
sgpcmbeC1.c1,2000,0113:30:00,29 ,11.90802,389.5937,107.4113,75.95994
sgpcmbeC1.c1,2000,0114:30:00,29 ,5.410477,321.5855,87.65956,59.92471
sgpcmbeC1.c1,2000,0115:30:00,29 ,4.598735,228.4013,62.96717, 44.7861
sgpcmbeC1.c1,2000,0116:30:00,29 ,3.127904,103.6196,32.46566,21.44794
sgpcmbeC1.c1,2000,0117:30:00,29 ,0.197174,22.63781,5.269801,5.164282
sgpcmbeC1.c1,2000,0118:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0119:30:00,29 ,       0,0.016734,0.000577,0.003107
sgpcmbeC1.c1,2000,0120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0121:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0122:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0123:30:00,22 ,       0, 0.00343,0.000156,0.000731