datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 5:30:00,31 ,       0,25.13345,12.16408,7.007992
sgpcmbeC1.c1,2000,07 6:30:00,31 ,1.984019,82.38382,39.93079, 22.4847
sgpcmbeC1.c1,2000,07 7:30:00,31 ,3.631309,138.2443,60.97938,35.78534
sgpcmbeC1.c1,2000,07 8:30:00,31 , 3.66641,222.4148,65.02801,39.70104
sgpcmbeC1.c1,2000,07 9:30:00,31 ,4.973529,205.5552, 85.8292,59.16374
sgpcmbeC1.c1,2000,0710:30:00,31 ,16.01863,299.0556,85.92775,80.21756
sgpcmbeC1.c1,2000,0711:30:00,31 ,15.88371,311.1718,102.4029,102.5092
sgpcmbeC1.c1,2000,0712:30:00,31 ,3.479404,340.3582,101.8131, 112.026
sgpcmbeC1.c1,2000,0713:30:00,31 ,11.15121,362.8941,134.7228, 114.613
sgpcmbeC1.c1,2000,0714:30:00,31 ,28.74649,284.0399,106.7544,83.11588
sgpcmbeC1.c1,2000,0715:30:00,31 ,5.503038,257.7507,94.01797,73.12576
sgpcmbeC1.c1,2000,0716:30:00,31 ,21.39774,221.2851,77.26323,46.65865
sgpcmbeC1.c1,2000,0717:30:00,31 ,25.99079,128.3656,67.23331,21.57947
sgpcmbeC1.c1,2000,0718:30:00,31 , 16.4266,95.36811,55.44505,  13.483
sgpcmbeC1.c1,2000,0719:30:00,31 ,3.631217,30.88708,21.02152,7.189352
sgpcmbeC1.c1,2000,0720:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0723:30:00,31 ,       0,       0,       0,       0