datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,03 0:30:00,30 ,       0,289.3145,22.07058,55.31881
sgpcmbeC1.c1,2007,03 1:30:00,30 ,       0,343.8183,36.65354,82.63458
sgpcmbeC1.c1,2007,03 2:30:00,30 ,       0,372.0745,40.01504,87.94599
sgpcmbeC1.c1,2007,03 3:30:00,30 ,       0,354.4256,27.35097, 68.0523
sgpcmbeC1.c1,2007,03 4:30:00,29 ,       0,215.5412, 27.4874,57.65983
sgpcmbeC1.c1,2007,03 5:30:00,29 ,       0, 371.228,31.93529,80.60181
sgpcmbeC1.c1,2007,03 6:30:00,28 ,0.101111,101.9752,22.18937,32.72737
sgpcmbeC1.c1,2007,03 7:30:00,29 ,       0,295.5423,39.85372,81.91295
sgpcmbeC1.c1,2007,03 8:30:00,29 ,       0,286.5352,43.31502,85.35659
sgpcmbeC1.c1,2007,03 9:30:00,30 ,       0,324.1588,48.18142,90.46202
sgpcmbeC1.c1,2007,0310:30:00,29 ,       0,377.0111,38.99412,83.41469
sgpcmbeC1.c1,2007,0311:30:00,28 ,       0,198.3346,25.88744,50.19235
sgpcmbeC1.c1,2007,0312:30:00,30 ,       0,319.2369,45.95861,79.42238
sgpcmbeC1.c1,2007,0313:30:00,30 ,0.021456,318.2306,53.18876,97.45077
sgpcmbeC1.c1,2007,0314:30:00,29 ,       0,540.5336,48.42928,114.6046
sgpcmbeC1.c1,2007,0315:30:00,29 ,       0,283.4656,48.13931,87.57826
sgpcmbeC1.c1,2007,0316:30:00,30 ,0.325089,288.8339,41.03641, 75.2354
sgpcmbeC1.c1,2007,0317:30:00,30 ,0.369673,  138.44,24.39433,42.03281
sgpcmbeC1.c1,2007,0318:30:00,30 ,0.555163,128.1761,16.15698,32.04029
sgpcmbeC1.c1,2007,0319:30:00,31 ,0.366855,212.9745,28.20746,56.74603
sgpcmbeC1.c1,2007,0320:30:00,30 ,0.250465,246.5241,21.95232, 60.4605
sgpcmbeC1.c1,2007,0321:30:00,30 ,0.351467,521.4302,38.75437,114.4892
sgpcmbeC1.c1,2007,0322:30:00,29 ,0.134909,316.6208, 25.2984,71.10482
sgpcmbeC1.c1,2007,0323:30:00,30 ,0.126911,226.6735,27.96905,56.50081