datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,       0,369.7641,26.78947,77.93125
sgpcmbeC1.c1,1999,01 1:30:00,28 ,       0,82.28452,13.50615,22.36189
sgpcmbeC1.c1,1999,01 2:30:00,29 ,       0,248.3952,21.63243,50.70542
sgpcmbeC1.c1,1999,01 3:30:00,30 ,       0,202.4613,23.73252,47.81122
sgpcmbeC1.c1,1999,01 4:30:00,29 ,       0, 120.565,15.40685,29.10803
sgpcmbeC1.c1,1999,01 5:30:00,29 ,       0,289.2755,26.30437,64.38808
sgpcmbeC1.c1,1999,01 6:30:00,29 ,       0,182.6579,23.06708,53.80351
sgpcmbeC1.c1,1999,01 7:30:00,31 ,       0,420.6101, 41.0703,88.94995
sgpcmbeC1.c1,1999,01 8:30:00,30 ,       0,362.7999,33.96589,77.62575
sgpcmbeC1.c1,1999,01 9:30:00,29 ,       0, 349.817, 26.1799,67.91067
sgpcmbeC1.c1,1999,0110:30:00,28 ,       0,187.8867, 17.5783,38.26179
sgpcmbeC1.c1,1999,0111:30:00,29 ,       0,221.0213,24.61233,  50.576
sgpcmbeC1.c1,1999,0112:30:00,28 ,       0,76.67182,11.49638,20.16439
sgpcmbeC1.c1,1999,0113:30:00,27 ,       0,63.78316, 10.3856,17.36255
sgpcmbeC1.c1,1999,0114:30:00,26 ,       0,269.4877,21.41933, 58.2912
sgpcmbeC1.c1,1999,0115:30:00,26 ,       0, 191.003,18.03004,44.33423
sgpcmbeC1.c1,1999,0116:30:00,28 ,       0,435.5015,32.38089,91.70391
sgpcmbeC1.c1,1999,0117:30:00,29 ,       0,127.5725,15.59335,33.88115
sgpcmbeC1.c1,1999,0118:30:00,30 ,       0,161.0389,23.70507,47.27384
sgpcmbeC1.c1,1999,0119:30:00,30 ,       0,193.9352,21.67894,46.79363
sgpcmbeC1.c1,1999,0120:30:00,29 ,       0,399.6815,26.30066,76.13468
sgpcmbeC1.c1,1999,0121:30:00,30 ,       0, 310.514,27.21831,64.06864
sgpcmbeC1.c1,1999,0122:30:00,30 ,       0,373.2997,35.96662,83.92932
sgpcmbeC1.c1,1999,0123:30:00,29 ,       0,361.7713,24.52545,69.87477