datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,01 0:30:00,31 ,0.309691, 2.19509,0.918096,0.534201
sgpcmbeC1.c1,2007,01 1:30:00,31 ,0.323247,2.276116,0.925042,0.529075
sgpcmbeC1.c1,2007,01 2:30:00,31 ,0.324924,2.419805,0.934218,0.544765
sgpcmbeC1.c1,2007,01 3:30:00,31 ,0.329568, 2.59826,0.951096,0.578087
sgpcmbeC1.c1,2007,01 4:30:00,31 ,0.312344,2.612162,0.958022,0.581569
sgpcmbeC1.c1,2007,01 5:30:00,31 ,0.293056,2.658064,0.989058,0.596676
sgpcmbeC1.c1,2007,01 6:30:00,31 ,0.288966,2.655123,1.004643,0.622328
sgpcmbeC1.c1,2007,01 7:30:00,31 ,0.283551,2.612749,1.022187,0.636576
sgpcmbeC1.c1,2007,01 8:30:00,31 ,0.284787,2.414009,1.026103,0.648315
sgpcmbeC1.c1,2007,01 9:30:00,31 ,0.273146,2.512887,1.024502,0.657421
sgpcmbeC1.c1,2007,0110:30:00,31 ,0.263509,2.638875,1.016702, 0.67023
sgpcmbeC1.c1,2007,0111:30:00,31 ,0.260499, 2.60515,1.005798,0.664368
sgpcmbeC1.c1,2007,0112:30:00,31 ,0.256756,2.588692,0.997383,0.644429
sgpcmbeC1.c1,2007,0113:30:00,31 ,0.257057,2.628612,0.984518,0.619535
sgpcmbeC1.c1,2007,0114:30:00,31 ,0.253055,2.540749,0.967038,0.575866
sgpcmbeC1.c1,2007,0115:30:00,31 ,0.255082,2.588887,0.976308, 0.59035
sgpcmbeC1.c1,2007,0116:30:00,31 ,0.265129,3.163861,0.992961,0.643056
sgpcmbeC1.c1,2007,0117:30:00,31 ,0.271785,3.928781,1.016681,0.734899
sgpcmbeC1.c1,2007,0118:30:00,31 , 0.27491,3.376498,0.998039,0.657195
sgpcmbeC1.c1,2007,0119:30:00,31 ,0.294436, 2.83341,0.983471,0.601128
sgpcmbeC1.c1,2007,0120:30:00,31 ,0.281568,2.440802,0.962704,0.571087
sgpcmbeC1.c1,2007,0121:30:00,31 ,0.269704,2.319571, 0.95167,  0.5529
sgpcmbeC1.c1,2007,0122:30:00,31 ,0.285382,2.324377,0.946984,0.556549
sgpcmbeC1.c1,2007,0123:30:00,31 ,0.300593,2.209979, 0.94416,0.547302