datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,11 0:30:00,28 ,       0,0.411825,0.014708,0.077828
sgpcmbeC1.c1,1998,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 2:30:00,28 ,       0,0.104669,0.003738,0.019781
sgpcmbeC1.c1,1998,11 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 4:30:00,29 ,       0,0.058728,0.002025,0.010906
sgpcmbeC1.c1,1998,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 6:30:00,29 ,       0,0.364477,0.031851,0.087204
sgpcmbeC1.c1,1998,11 7:30:00,29 ,3.750195,64.59273,25.79554,16.02472
sgpcmbeC1.c1,1998,11 8:30:00,29 ,10.23407, 260.058,130.7414,70.36961
sgpcmbeC1.c1,1998,11 9:30:00,29 ,27.47494,407.2121,246.4121,125.3087
sgpcmbeC1.c1,1998,1110:30:00,29 ,36.44202,535.1846,331.8755,176.4903
sgpcmbeC1.c1,1998,1111:30:00,29 ,45.68559,610.3303,371.1494,210.6413
sgpcmbeC1.c1,1998,1112:30:00,29 ,47.47404,626.0806, 381.568,221.3566
sgpcmbeC1.c1,1998,1113:30:00,29 ,49.37021,578.0977,352.9277,197.6643
sgpcmbeC1.c1,1998,1114:30:00,29 ,53.65109, 470.695,292.1166,152.8803
sgpcmbeC1.c1,1998,1115:30:00,29 ,32.47575,316.6222,195.4998,100.8995
sgpcmbeC1.c1,1998,1116:30:00,29 ,12.88216,136.0388,73.89473, 42.0118
sgpcmbeC1.c1,1998,1117:30:00,30 ,       0,10.27292,3.857539,2.844821
sgpcmbeC1.c1,1998,1118:30:00,29 ,       0,1.467976,0.061383,0.276658
sgpcmbeC1.c1,1998,1119:30:00,29 ,       0,0.732588,0.027058,0.136037
sgpcmbeC1.c1,1998,1120:30:00,29 ,       0, 0.39091,0.015514,0.073024
sgpcmbeC1.c1,1998,1121:30:00,29 ,       0,0.109317,0.006323,0.024109
sgpcmbeC1.c1,1998,1122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1123:30:00,28 ,       0,0.892292,0.033655,0.168542