datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,01 0:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,01 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,01 2:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,01 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,01 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,01 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,01 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,01 7:30:00,31 ,       0,3.438934,1.168048,0.847032
sgpcmbeC1.c1,2003,01 8:30:00,31 ,2.041573, 40.2499, 24.4233,10.63999
sgpcmbeC1.c1,2003,01 9:30:00,31 ,6.474868,86.27586,56.40399,24.50605
sgpcmbeC1.c1,2003,0110:30:00,31 ,13.08842,120.3818,84.00498,34.62876
sgpcmbeC1.c1,2003,0111:30:00,31 ,17.85625,142.1755,101.9709,37.28312
sgpcmbeC1.c1,2003,0112:30:00,31 , 25.5834,151.6474,106.2419,38.24416
sgpcmbeC1.c1,2003,0113:30:00,31 ,21.92788,148.8373,109.0135, 36.1868
sgpcmbeC1.c1,2003,0114:30:00,31 ,17.14515,132.8495,94.45625,33.11377
sgpcmbeC1.c1,2003,0115:30:00,31 ,11.27183,102.0175,69.02095,29.08871
sgpcmbeC1.c1,2003,0116:30:00,31 ,5.363832,60.77199,35.47904,16.57562
sgpcmbeC1.c1,2003,0117:30:00,31 ,0.112342,14.98919,5.438322, 4.24296
sgpcmbeC1.c1,2003,0118:30:00,31 ,       0,0.006592,0.000213,0.001184
sgpcmbeC1.c1,2003,0119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0120:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0121:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0122:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0123:30:00,24 ,       0,       0,       0,       0