datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,01 0:30:00,19 ,       0,114.9421,19.67716,39.73552
sgpcmbeC1.c1,2005,01 1:30:00,17 ,       0,156.6503,22.64124,49.52433
sgpcmbeC1.c1,2005,01 2:30:00,16 ,       0,185.4281,26.40496,59.27808
sgpcmbeC1.c1,2005,01 3:30:00,15 ,       0,408.2864,41.65802,112.6965
sgpcmbeC1.c1,2005,01 4:30:00,16 ,       0,1119.442,109.6395,289.1678
sgpcmbeC1.c1,2005,01 5:30:00,16 ,       0,621.7662,90.57064,206.9969
sgpcmbeC1.c1,2005,01 6:30:00,14 ,       0, 1205.14,141.7543,342.8946
sgpcmbeC1.c1,2005,01 7:30:00,14 ,       0,1138.591, 135.267, 307.052
sgpcmbeC1.c1,2005,01 8:30:00,18 ,       0,641.7513,62.80615,156.2214
sgpcmbeC1.c1,2005,01 9:30:00,18 ,       0,646.2325, 63.6477,155.4418
sgpcmbeC1.c1,2005,0110:30:00,18 ,       0,247.0722, 37.3643, 71.1906
sgpcmbeC1.c1,2005,0111:30:00,18 ,       0,254.6959,35.49855,71.19862
sgpcmbeC1.c1,2005,0112:30:00,20 ,       0, 305.202,37.98934,72.06277
sgpcmbeC1.c1,2005,0113:30:00,21 ,       0,489.0056,56.07569,113.1852
sgpcmbeC1.c1,2005,0114:30:00,21 ,       0,440.5897,52.90119,98.82668
sgpcmbeC1.c1,2005,0115:30:00,20 ,       0,415.0013,51.88381,99.52312
sgpcmbeC1.c1,2005,0116:30:00,20 ,       0,413.4693,53.31912,100.9947
sgpcmbeC1.c1,2005,0117:30:00,19 ,       0,74.29354,24.28277,31.59641
sgpcmbeC1.c1,2005,0118:30:00,20 ,       0,122.1795,23.37872,36.43871
sgpcmbeC1.c1,2005,0119:30:00,20 ,       0,112.7726, 27.5443,38.79123
sgpcmbeC1.c1,2005,0120:30:00,20 ,       0,136.3671,25.65193,39.90824
sgpcmbeC1.c1,2005,0121:30:00,19 ,       0,123.3719,22.43457,39.19382
sgpcmbeC1.c1,2005,0122:30:00,19 ,       0,146.3689,24.18464,45.76272
sgpcmbeC1.c1,2005,0123:30:00,18 ,       0,153.7547,25.90039,46.20856