datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,03 0:30:00,29 ,       0,0.113065,0.009667,0.029692
sgpcmbeC1.c1,1999,03 1:30:00,29 ,       0,0.074581,0.005498,0.016909
sgpcmbeC1.c1,1999,03 2:30:00,29 ,       0,0.024769,0.000937,0.004605
sgpcmbeC1.c1,1999,03 3:30:00,30 ,       0,0.395076,0.017461,0.074799
sgpcmbeC1.c1,1999,03 4:30:00,29 ,       0,0.004515,0.000156,0.000838
sgpcmbeC1.c1,1999,03 5:30:00,29 ,       0,0.042698,0.001472,0.007929
sgpcmbeC1.c1,1999,03 6:30:00,29 ,       0,7.310646,1.800669,2.360428
sgpcmbeC1.c1,1999,03 7:30:00,29 ,0.161651,49.61476,9.258735,9.122061
sgpcmbeC1.c1,1999,03 8:30:00,29 ,0.292558,28.19572,11.05765,6.051683
sgpcmbeC1.c1,1999,03 9:30:00,29 ,0.258435, 52.6587,15.74649,10.36079
sgpcmbeC1.c1,1999,0310:30:00,28 ,4.427097,54.40821,17.70028,13.35394
sgpcmbeC1.c1,1999,0311:30:00,28 ,2.473814,51.72802,15.33081,15.19244
sgpcmbeC1.c1,1999,0312:30:00,28 ,0.486652,35.87144,15.59012,12.88158
sgpcmbeC1.c1,1999,0313:30:00,29 ,1.920387,51.82706, 16.9086,14.31619
sgpcmbeC1.c1,1999,0314:30:00,30 ,2.500774,98.51196,17.71688,21.09742
sgpcmbeC1.c1,1999,0315:30:00,30 ,2.114138,40.54094,15.84534,11.24199
sgpcmbeC1.c1,1999,0316:30:00,30 ,0.391709,45.52433,13.47881,10.87046
sgpcmbeC1.c1,1999,0317:30:00,30 ,0.111262,41.85707, 10.4068,8.414276
sgpcmbeC1.c1,1999,0318:30:00,30 ,       0,16.75878,3.626671,3.539433
sgpcmbeC1.c1,1999,0319:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0320:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0321:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0322:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0323:30:00,29 ,       0,0.043524,0.001501,0.008082