datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 7:30:00,31 ,       0,8.923047, 3.04156,2.543305
sgpcmbeC1.c1,1999,01 8:30:00,31 ,3.316979,130.0932,59.56884,38.37902
sgpcmbeC1.c1,1999,01 9:30:00,31 ,12.32382,295.0219,152.9163,99.35261
sgpcmbeC1.c1,1999,0110:30:00,31 , 16.5792,434.6038,250.5608,148.4739
sgpcmbeC1.c1,1999,0111:30:00,31 ,19.01705,531.5657,309.8513, 170.317
sgpcmbeC1.c1,1999,0112:30:00,31 ,27.26831,575.9517,361.9105, 200.286
sgpcmbeC1.c1,1999,0113:30:00,31 ,31.13204,566.4402,349.9298,188.8206
sgpcmbeC1.c1,1999,0114:30:00,31 ,31.58691,494.6646,297.7438,157.9221
sgpcmbeC1.c1,1999,0115:30:00,31 ,21.60285,360.2216,213.8503,118.8774
sgpcmbeC1.c1,1999,0116:30:00,31 ,7.021285,189.4194,100.4568,55.25302
sgpcmbeC1.c1,1999,0117:30:00,31 ,       0,35.88637,13.43391,9.279287
sgpcmbeC1.c1,1999,0118:30:00,31 ,       0,0.126438,0.004079,0.022709
sgpcmbeC1.c1,1999,0119:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0120:30:00,31 ,       0,0.071216,0.002297,0.012791
sgpcmbeC1.c1,1999,0121:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0123:30:00,28 ,       0,       0,       0,       0