datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,03 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,03 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,03 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,03 3:30:00,31 ,       0,0.011174, 0.00036,0.002007
sgpcmbeC1.c1,2005,03 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,03 6:30:00,31 ,       0,10.69886,1.507149,2.576479
sgpcmbeC1.c1,2005,03 7:30:00,30 ,0.926214,50.86071, 20.6487,12.84459
sgpcmbeC1.c1,2005,03 8:30:00,31 , 3.64185,95.40933, 51.4251,28.99796
sgpcmbeC1.c1,2005,03 9:30:00,31 ,9.488941,131.7925,77.27725,37.18922
sgpcmbeC1.c1,2005,0310:30:00,31 , 8.84312,   152.9,101.5993,45.64917
sgpcmbeC1.c1,2005,0311:30:00,31 ,22.35853,168.6765,119.3983,48.62012
sgpcmbeC1.c1,2005,0312:30:00,31 ,17.98155,171.5933,126.1079,46.62942
sgpcmbeC1.c1,2005,0313:30:00,31 ,17.83749,177.3158,122.0109,44.01097
sgpcmbeC1.c1,2005,0314:30:00,31 ,17.51943,158.1923,110.8965,38.66988
sgpcmbeC1.c1,2005,0315:30:00,31 ,6.063269,129.6436,89.51229,34.00477
sgpcmbeC1.c1,2005,0316:30:00,31 ,5.167238,98.27033,59.21473,   28.51
sgpcmbeC1.c1,2005,0317:30:00,31 ,1.972231,57.88852,28.24121,16.23948
sgpcmbeC1.c1,2005,0318:30:00,31 ,       0,16.52843,5.315803,4.589156
sgpcmbeC1.c1,2005,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0320:30:00,31 ,       0,0.024614,0.000794,0.004421
sgpcmbeC1.c1,2005,0321:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0322:30:00,31 ,       0,0.006418,0.000207,0.001153
sgpcmbeC1.c1,2005,0323:30:00,31 ,       0,       0,       0,       0