datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,08 0:30:00,30 ,       0,0.169141,0.005638,0.030881
sgpcmbeC1.c1,1998,08 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,08 2:30:00,30 ,       0,0.293834,0.009794,0.053646
sgpcmbeC1.c1,1998,08 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,08 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,08 5:30:00,30 ,       0,7.370872,2.254831,1.902941
sgpcmbeC1.c1,1998,08 6:30:00,30 ,31.66244,116.5515, 70.4677,19.08547
sgpcmbeC1.c1,1998,08 7:30:00,30 ,127.7597,316.7417,236.0346,37.32242
sgpcmbeC1.c1,1998,08 8:30:00,30 ,214.5405,478.7259,407.3944,65.70177
sgpcmbeC1.c1,1998,08 9:30:00,30 ,202.2054,655.2564,562.7675,115.7608
sgpcmbeC1.c1,1998,0810:30:00,30 ,272.3434,828.5912,710.5062,132.4657
sgpcmbeC1.c1,1998,0811:30:00,30 ,179.9323,927.8278,759.9942,190.3694
sgpcmbeC1.c1,1998,0812:30:00,30 ,309.5551,940.4866,746.7242,191.9946
sgpcmbeC1.c1,1998,0813:30:00,31 , 371.096,907.0443,772.0824,130.6623
sgpcmbeC1.c1,1998,0814:30:00,31 ,124.2406,857.6074,655.0496,176.9928
sgpcmbeC1.c1,1998,0815:30:00,31 ,12.15015,706.9484,539.2142,171.1622
sgpcmbeC1.c1,1998,0816:30:00,31 ,11.20824,517.1739,381.9669,130.3731
sgpcmbeC1.c1,1998,0817:30:00,31 ,15.86199,325.7024, 204.103,81.68648
sgpcmbeC1.c1,1998,0818:30:00,31 ,8.374294,138.1832,76.24302,27.34286
sgpcmbeC1.c1,1998,0819:30:00,31 ,       0,19.66221,4.884725,4.943722
sgpcmbeC1.c1,1998,0820:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0821:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0822:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0823:30:00,30 ,       0,0.083695, 0.00279, 0.01528