datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,07 0:30:00,23 ,       0,92.70976,6.617601,19.11101
sgpcmbeC1.c1,1999,07 1:30:00,24 ,       0,19.03913,3.643446,5.203459
sgpcmbeC1.c1,1999,07 2:30:00,24 ,       0,205.6809,16.57732,44.27712
sgpcmbeC1.c1,1999,07 3:30:00,24 ,       0, 97.2802,9.470899, 21.5076
sgpcmbeC1.c1,1999,07 4:30:00,24 ,       0,158.9869, 19.5472,41.87955
sgpcmbeC1.c1,1999,07 5:30:00,24 ,       0,223.3479, 20.0572,49.65043
sgpcmbeC1.c1,1999,07 6:30:00,24 ,       0,178.0912,18.75206,45.68738
sgpcmbeC1.c1,1999,07 7:30:00,25 ,       0,100.7829,6.160768, 20.1846
sgpcmbeC1.c1,1999,07 8:30:00,28 ,       0,100.9558,5.390841,18.92404
sgpcmbeC1.c1,1999,07 9:30:00,29 ,       0,57.84755,4.539532,12.01382
sgpcmbeC1.c1,1999,0710:30:00,29 ,       0,44.03155,4.661655,9.610924
sgpcmbeC1.c1,1999,0711:30:00,28 ,       0,86.32244,7.834496,18.01577
sgpcmbeC1.c1,1999,0712:30:00,26 ,       0,91.03439,9.885641,18.80562
sgpcmbeC1.c1,1999,0713:30:00,26 ,       0,88.97771,10.45962,18.21856
sgpcmbeC1.c1,1999,0714:30:00,25 ,       0,77.28989,12.29179,18.72486
sgpcmbeC1.c1,1999,0715:30:00,23 ,       0,76.85702,8.380614,16.52474
sgpcmbeC1.c1,1999,0716:30:00,23 ,       0,83.28909,8.255612,17.36752
sgpcmbeC1.c1,1999,0717:30:00,23 ,       0,147.3246,10.63212,30.81389
sgpcmbeC1.c1,1999,0718:30:00,24 ,       0,20.42114,3.018621, 4.98339
sgpcmbeC1.c1,1999,0719:30:00,24 ,       0,92.79691, 5.59511,18.63459
sgpcmbeC1.c1,1999,0720:30:00,23 ,       0,14.16678,2.468235,3.612831
sgpcmbeC1.c1,1999,0721:30:00,23 ,       0, 8.25923,2.134655,2.487998
sgpcmbeC1.c1,1999,0722:30:00,23 ,       0,28.24359,3.058615,6.199752
sgpcmbeC1.c1,1999,0723:30:00,23 ,       0,54.94424,3.917217,11.50103