datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,11 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 6:30:00,30 ,       0,0.070399,0.006436,0.019725
sgpcmbeC1.c1,2004,11 7:30:00,30 ,       0,17.66381,4.972102,5.814611
sgpcmbeC1.c1,2004,11 8:30:00,30 ,1.225733,54.27205,17.70956,16.66642
sgpcmbeC1.c1,2004,11 9:30:00,30 ,2.045449,87.79487,34.45525,28.83359
sgpcmbeC1.c1,2004,1110:30:00,30 ,2.065753,110.9592,50.51001,38.10344
sgpcmbeC1.c1,2004,1111:30:00,30 ,5.101123,119.1662,58.74487,42.11809
sgpcmbeC1.c1,2004,1112:30:00,30 ,6.784713,119.8432,60.61096,43.97562
sgpcmbeC1.c1,2004,1113:30:00,30 ,4.971552,120.0628,53.48369,40.98159
sgpcmbeC1.c1,2004,1114:30:00,30 ,4.742519,96.50806,43.94738,35.24137
sgpcmbeC1.c1,2004,1115:30:00,30 ,2.234274,69.38105,28.24126,23.30021
sgpcmbeC1.c1,2004,1116:30:00,30 ,1.717373,33.43895,11.99761,10.94353
sgpcmbeC1.c1,2004,1117:30:00,30 ,       0,9.558857, 1.08322,2.034317
sgpcmbeC1.c1,2004,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1120:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1121:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1122:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1123:30:00,30 ,       0,       0,       0,       0