datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,01 0:30:00,30 ,       0,0.834029,0.122498,0.265515
sgpcmbeC1.c1,2005,01 1:30:00,31 ,       0,0.532336,0.055997,0.133445
sgpcmbeC1.c1,2005,01 2:30:00,30 ,       0,0.228949,0.019634,0.053771
sgpcmbeC1.c1,2005,01 3:30:00,31 ,       0,0.478922,0.028001,0.101128
sgpcmbeC1.c1,2005,01 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,01 5:30:00,31 ,       0, 0.19821,0.015052,0.047845
sgpcmbeC1.c1,2005,01 6:30:00,31 ,       0,0.013757,0.000444,0.002471
sgpcmbeC1.c1,2005,01 7:30:00,31 ,       0, 6.64595,1.423917, 1.93909
sgpcmbeC1.c1,2005,01 8:30:00,31 ,       0, 52.3812,17.53201,20.30711
sgpcmbeC1.c1,2005,01 9:30:00,31 ,0.033677,52.09776,19.96639,21.26236
sgpcmbeC1.c1,2005,0110:30:00,31 , 0.10776,123.5588,22.13506,30.41298
sgpcmbeC1.c1,2005,0111:30:00,31 , 0.15089,135.5778,22.35101,29.19144
sgpcmbeC1.c1,2005,0112:30:00,31 ,0.117799,128.3267,30.28915,44.11067
sgpcmbeC1.c1,2005,0113:30:00,31 ,0.083057,110.4405,22.06851,30.73359
sgpcmbeC1.c1,2005,0114:30:00,31 ,0.091061,148.6462,30.27747,38.80055
sgpcmbeC1.c1,2005,0115:30:00,31 ,       0,83.37902,23.49205, 26.7176
sgpcmbeC1.c1,2005,0116:30:00,31 ,0.004265,65.20254,21.20216,22.71868
sgpcmbeC1.c1,2005,0117:30:00,31 ,       0,25.60008,6.494698,8.634738
sgpcmbeC1.c1,2005,0118:30:00,31 ,       0,0.160174,0.020098,0.044669
sgpcmbeC1.c1,2005,0119:30:00,31 ,       0,0.299839, 0.02954,0.081467
sgpcmbeC1.c1,2005,0120:30:00,31 ,       0,0.351789,0.045097, 0.10676
sgpcmbeC1.c1,2005,0121:30:00,31 ,       0,0.530793,0.070115,0.151469
sgpcmbeC1.c1,2005,0122:30:00,30 ,       0,0.542906,0.058252,0.157853
sgpcmbeC1.c1,2005,0123:30:00,31 ,       0,0.554128,0.048287,0.136233