datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,08 0:30:00,24 ,       0,211.5703,10.44194,42.92528
sgpcmbeC1.c1,1999,08 1:30:00,23 ,       0,84.26216,  7.3808,18.63356
sgpcmbeC1.c1,1999,08 2:30:00,23 ,       0,286.7631,25.93004,69.69227
sgpcmbeC1.c1,1999,08 3:30:00,23 ,       0,279.1082,29.68384,73.53378
sgpcmbeC1.c1,1999,08 4:30:00,23 ,       0,206.2226,20.31185,47.41391
sgpcmbeC1.c1,1999,08 5:30:00,23 ,       0, 307.011,52.02953,99.21072
sgpcmbeC1.c1,1999,08 6:30:00,23 ,       0,221.2871,29.71865,55.82204
sgpcmbeC1.c1,1999,08 7:30:00,22 ,       0,221.5254,31.77015,65.47553
sgpcmbeC1.c1,1999,08 8:30:00,22 ,       0,253.1984,33.98741, 70.2312
sgpcmbeC1.c1,1999,08 9:30:00,22 ,       0,182.1521, 17.6166,42.95243
sgpcmbeC1.c1,1999,0810:30:00,22 ,       0,66.42396,7.272154,16.30572
sgpcmbeC1.c1,1999,0811:30:00,21 ,       0,132.3962,15.10653,31.90854
sgpcmbeC1.c1,1999,0812:30:00,20 ,       0,120.1606, 19.7297, 36.0708
sgpcmbeC1.c1,1999,0813:30:00,20 ,       0,227.7974,29.51135,58.81712
sgpcmbeC1.c1,1999,0814:30:00,17 ,       0,208.5755,25.50378,55.26249
sgpcmbeC1.c1,1999,0815:30:00,16 ,       0,103.2934,18.87673, 32.2214
sgpcmbeC1.c1,1999,0816:30:00,15 ,       0,78.18029,9.274142,20.13413
sgpcmbeC1.c1,1999,0817:30:00,12 ,       0,131.6634,14.89618,37.31141
sgpcmbeC1.c1,1999,0818:30:00,24 ,       0,14.37752,1.902219, 3.82287
sgpcmbeC1.c1,1999,0819:30:00,24 ,       0,35.69601,3.008562,7.985858
sgpcmbeC1.c1,1999,0820:30:00,25 ,       0,92.42127,10.43174,24.89256
sgpcmbeC1.c1,1999,0821:30:00,25 ,       0,262.9504,27.72625,58.44613
sgpcmbeC1.c1,1999,0822:30:00,25 ,       0,140.0704,16.42649,34.19789
sgpcmbeC1.c1,1999,0823:30:00,24 ,       0,54.71561,4.385495,11.35683