datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,       0,0.700937,0.089661,0.188347
sgpcmbeC1.c1,1999,01 1:30:00,27 ,       0,0.234588,0.018916,0.052759
sgpcmbeC1.c1,1999,01 2:30:00,27 ,       0,0.541018,0.035269,0.112409
sgpcmbeC1.c1,1999,01 3:30:00,29 ,       0,0.683616,0.071913,0.160777
sgpcmbeC1.c1,1999,01 4:30:00,29 ,       0,0.409926,0.030944,0.080461
sgpcmbeC1.c1,1999,01 5:30:00,31 ,       0,0.600096,0.041904, 0.12168
sgpcmbeC1.c1,1999,01 6:30:00,31 ,       0,0.879281,0.075929,0.168687
sgpcmbeC1.c1,1999,01 7:30:00,31 ,0.269972,9.118375,3.417268,2.483842
sgpcmbeC1.c1,1999,01 8:30:00,31 ,4.136006,130.0932,59.63811,38.28396
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 ,7.403915,189.4194,100.4691,55.23149
sgpcmbeC1.c1,1999,0117:30:00,31 ,0.591625,35.93598,13.79756, 9.14453
sgpcmbeC1.c1,1999,0118:30:00,31 ,       0,0.641042,0.209322,0.211009
sgpcmbeC1.c1,1999,0119:30:00,31 ,       0,0.525296,0.068798,0.121303
sgpcmbeC1.c1,1999,0120:30:00,31 ,       0,0.425249,0.076628,0.116795
sgpcmbeC1.c1,1999,0121:30:00,31 ,       0,0.877057,0.084899,0.203604
sgpcmbeC1.c1,1999,0122:30:00,29 ,       0,0.274256,0.043688,0.080423
sgpcmbeC1.c1,1999,0123:30:00,28 ,       0,0.549753,0.067235,0.128217