datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,11 0:30:00,28 ,       0,0.204565,0.007306,0.038659
sgpcmbeC1.c1,1998,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 2:30:00,28 ,       0,0.225711,0.008061,0.042655
sgpcmbeC1.c1,1998,11 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 4:30:00,29 ,       0,0.150901,0.005203,0.028022
sgpcmbeC1.c1,1998,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 6:30:00,29 ,       0,0.003307,0.000114,0.000614
sgpcmbeC1.c1,1998,11 7:30:00,29 ,0.008565,33.31052,10.77962,10.86417
sgpcmbeC1.c1,1998,11 8:30:00,29 ,0.005952,65.21401,27.24223, 23.3561
sgpcmbeC1.c1,1998,11 9:30:00,29 ,0.040427,108.3901,27.39928,25.18738
sgpcmbeC1.c1,1998,1110:30:00,29 ,0.015648,54.11971,19.80877,15.53245
sgpcmbeC1.c1,1998,1111:30:00,29 ,0.039717,54.77652,13.69418,14.36581
sgpcmbeC1.c1,1998,1112:30:00,29 ,0.023526,101.5802,17.91107,27.07586
sgpcmbeC1.c1,1998,1113:30:00,29 ,0.022738,105.7766,25.02567,30.50575
sgpcmbeC1.c1,1998,1114:30:00,29 ,0.035005, 116.296,36.23007,30.84831
sgpcmbeC1.c1,1998,1115:30:00,29 ,0.024664,80.16051,31.70575,25.16466
sgpcmbeC1.c1,1998,1116:30:00,29 ,       0,45.66661,21.70323,20.01483
sgpcmbeC1.c1,1998,1117:30:00,30 ,       0, 7.23366,1.428222, 2.03344
sgpcmbeC1.c1,1998,1118:30:00,29 ,       0,0.588913,0.022794,  0.1097
sgpcmbeC1.c1,1998,1119:30:00,29 ,       0,0.149912,0.008735,0.033248
sgpcmbeC1.c1,1998,1120:30:00,29 ,       0,0.132286,0.004562,0.024565
sgpcmbeC1.c1,1998,1121:30:00,29 ,       0,0.230849,0.011342,0.045974
sgpcmbeC1.c1,1998,1122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1123:30:00,28 ,       0,0.496862,0.025811,0.101694