datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,12 0:30:00,27 ,0.000975,342.6404,53.08481,95.77677
sgpcmbeC1.c1,1998,12 1:30:00,27 ,       0,275.6426,50.19156,94.99137
sgpcmbeC1.c1,1998,12 2:30:00,27 ,       0, 308.945,50.90255,91.10373
sgpcmbeC1.c1,1998,12 3:30:00,27 ,       0,296.8324,54.35973,92.05157
sgpcmbeC1.c1,1998,12 4:30:00,27 ,       0,323.9078, 59.5468,98.49755
sgpcmbeC1.c1,1998,12 5:30:00,27 ,       0,  351.55,54.98066,98.55772
sgpcmbeC1.c1,1998,12 6:30:00,27 ,0.015854,502.0824,64.82483, 127.411
sgpcmbeC1.c1,1998,12 7:30:00,26 ,       0,308.1142,41.42898,79.04285
sgpcmbeC1.c1,1998,12 8:30:00,26 ,       0,310.1436,39.50582,78.88941
sgpcmbeC1.c1,1998,12 9:30:00,27 ,       0,583.9515,55.78072,129.5505
sgpcmbeC1.c1,1998,1210:30:00,26 ,       0,336.6704,36.05745,85.78159
sgpcmbeC1.c1,1998,1211:30:00,26 ,       0,329.9752,54.20824,98.75259
sgpcmbeC1.c1,1998,1212:30:00,27 ,       0,644.1318,61.86739,146.1544
sgpcmbeC1.c1,1998,1213:30:00,26 ,       0,394.9302,40.26487,88.85333
sgpcmbeC1.c1,1998,1214:30:00,26 ,       0,525.8452,44.96396,111.3018
sgpcmbeC1.c1,1998,1215:30:00,27 ,0.009351,440.8904,35.98214,92.92102
sgpcmbeC1.c1,1998,1216:30:00,26 ,       0,239.7495,30.54193,64.94882
sgpcmbeC1.c1,1998,1217:30:00,27 ,       0,276.3503,43.53608,83.46521
sgpcmbeC1.c1,1998,1218:30:00,28 ,0.058698,741.7192,59.57814,149.8142
sgpcmbeC1.c1,1998,1219:30:00,28 ,1.322006,584.7752,58.14863,136.1575
sgpcmbeC1.c1,1998,1220:30:00,26 ,1.535026,664.3916,63.92027,144.3957
sgpcmbeC1.c1,1998,1221:30:00,27 ,0.960792,786.8754,62.10042,159.1607
sgpcmbeC1.c1,1998,1222:30:00,28 ,0.188509,322.7427,48.61842,88.42396
sgpcmbeC1.c1,1998,1223:30:00,28 , 0.17227,  596.23,72.10405,143.8757