datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,08 0:30:00,18 ,       0, 164.877,11.18402,38.54859
sgpcmbeC1.c1,2001,08 1:30:00,18 ,       0,103.0998,10.06327,25.85553
sgpcmbeC1.c1,2001,08 2:30:00,18 ,       0,120.8119,9.998495,28.55836
sgpcmbeC1.c1,2001,08 3:30:00,18 ,       0,193.7878,14.31508,45.23644
sgpcmbeC1.c1,2001,08 4:30:00,18 ,       0,36.23076,4.423383,8.867221
sgpcmbeC1.c1,2001,08 5:30:00,18 ,       0,41.95354,4.384915,10.05208
sgpcmbeC1.c1,2001,08 6:30:00,18 ,       0,79.79842,7.233518,18.97221
sgpcmbeC1.c1,2001,08 7:30:00,18 ,       0,88.04185,7.181176,  20.583
sgpcmbeC1.c1,2001,08 8:30:00,19 ,       0,34.84134, 2.73615,8.054357
sgpcmbeC1.c1,2001,08 9:30:00,19 ,       0,43.13312,5.687555,11.73268
sgpcmbeC1.c1,2001,0810:30:00,19 ,       0,68.01375,6.495193,15.84463
sgpcmbeC1.c1,2001,0811:30:00,20 ,       0,65.30419,5.841391,14.59552
sgpcmbeC1.c1,2001,0812:30:00,20 ,       0,107.0721, 13.2801,27.36449
sgpcmbeC1.c1,2001,0813:30:00,20 ,       0,137.4598, 13.6059,32.10604
sgpcmbeC1.c1,2001,0814:30:00,19 ,       0,35.60316,6.915173,10.22711
sgpcmbeC1.c1,2001,0815:30:00,19 ,       0,127.7097,14.68962,32.36936
sgpcmbeC1.c1,2001,0816:30:00,19 ,       0,123.2685,10.78562,28.44335
sgpcmbeC1.c1,2001,0817:30:00,19 ,       0,199.0827,17.02658,47.78228
sgpcmbeC1.c1,2001,0818:30:00,19 ,       0,210.9058,13.30743,48.31053
sgpcmbeC1.c1,2001,0819:30:00,19 ,       0,229.9132,13.10725, 52.5407
sgpcmbeC1.c1,2001,0820:30:00,19 ,       0,2.834681,0.698504,0.927378
sgpcmbeC1.c1,2001,0821:30:00,19 ,       0,2.226778,0.643317,0.858621
sgpcmbeC1.c1,2001,0822:30:00,20 ,       0,88.57071,5.338327,19.68677
sgpcmbeC1.c1,2001,0823:30:00,18 ,       0,107.4156,8.593595,25.40972