datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,03 0:30:00,25 ,       0,2.052922,0.200566,0.556818
sgpcmbeC1.c1,2006,03 1:30:00,26 ,       0,3.366238,0.415083,1.005303
sgpcmbeC1.c1,2006,03 2:30:00,27 ,       0,1.417464,0.079594,0.280148
sgpcmbeC1.c1,2006,03 3:30:00,26 ,       0,2.613464,0.135797,0.516343
sgpcmbeC1.c1,2006,03 4:30:00,25 ,       0,2.633993,0.291704,0.754709
sgpcmbeC1.c1,2006,03 5:30:00,25 ,       0, 1.39217,0.184354, 0.39134
sgpcmbeC1.c1,2006,03 6:30:00,31 ,       0,15.21996,1.790572,3.751181
sgpcmbeC1.c1,2006,03 7:30:00,30 ,       0,159.4223,39.02776,49.97082
sgpcmbeC1.c1,2006,03 8:30:00,30 ,       0,362.6408, 121.767,132.5291
sgpcmbeC1.c1,2006,03 9:30:00,30 ,       0,551.5685,205.9039,209.8557
sgpcmbeC1.c1,2006,0310:30:00,30 ,0.002243,703.6904,312.6505,270.7161
sgpcmbeC1.c1,2006,0311:30:00,31 ,       0,802.5322,356.9136, 317.488
sgpcmbeC1.c1,2006,0312:30:00,31 ,0.000347,839.3843,369.8255,   338.4
sgpcmbeC1.c1,2006,0313:30:00,31 ,       0,776.8448,370.1069,325.5762
sgpcmbeC1.c1,2006,0314:30:00,31 ,0.032539,684.9253,306.8988, 285.343
sgpcmbeC1.c1,2006,0315:30:00,31 ,       0,538.7836,230.2948,225.2766
sgpcmbeC1.c1,2006,0316:30:00,31 ,       0,362.7313,145.6769,141.6759
sgpcmbeC1.c1,2006,0317:30:00,31 ,       0, 164.751,53.50334, 60.6901
sgpcmbeC1.c1,2006,0318:30:00,31 ,       0,19.26414,4.709048,6.170044
sgpcmbeC1.c1,2006,0319:30:00,20 ,       0, 2.71308,0.354487,0.805243
sgpcmbeC1.c1,2006,0320:30:00,25 ,       0,3.432505,0.660048,1.053087
sgpcmbeC1.c1,2006,0321:30:00,25 ,       0,3.174798,0.401441,0.890296
sgpcmbeC1.c1,2006,0322:30:00,24 ,       0, 2.41819, 0.21357,0.665465
sgpcmbeC1.c1,2006,0323:30:00,25 ,       0,2.668705,0.238466,0.603343