datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,01 0:30:00,27 ,0.230243,2.680089,0.983147,0.510818
sgpcmbeC1.c1,2001,01 1:30:00,25 ,0.234802,2.559532,0.967483,0.496676
sgpcmbeC1.c1,2001,01 2:30:00,25 ,0.244076,2.633242,0.973533,0.496984
sgpcmbeC1.c1,2001,01 3:30:00,25 ,0.247927,2.561735,0.971483,0.492579
sgpcmbeC1.c1,2001,01 4:30:00,25 ,0.238068,2.561535,  0.9711,0.483017
sgpcmbeC1.c1,2001,01 5:30:00,25 ,0.233858,2.729254,0.989883,0.506237
sgpcmbeC1.c1,2001,01 6:30:00,25 ,0.245325,2.697177,1.011236,0.546946
sgpcmbeC1.c1,2001,01 7:30:00,25 ,0.269328,2.693697,1.005667,0.561095
sgpcmbeC1.c1,2001,01 8:30:00,27 ,0.212857,2.644684,0.990513,0.541763
sgpcmbeC1.c1,2001,01 9:30:00,27 ,0.207907,1.966147,0.919256,0.401055
sgpcmbeC1.c1,2001,0110:30:00,28 ,0.228093,1.708479, 0.93488,0.376619
sgpcmbeC1.c1,2001,0111:30:00,28 ,0.226791,1.625904,0.932907,0.351648
sgpcmbeC1.c1,2001,0112:30:00,28 ,0.240895,1.905816,0.903545,0.352262
sgpcmbeC1.c1,2001,0113:30:00,28 ,0.267307,2.041055,0.913296, 0.34144
sgpcmbeC1.c1,2001,0114:30:00,28 ,0.261756,2.207538,0.920922,0.362724
sgpcmbeC1.c1,2001,0115:30:00,27 ,0.258415,2.149496,0.929166,0.373243
sgpcmbeC1.c1,2001,0116:30:00,27 ,0.270251,2.245027,0.945899,0.403294
sgpcmbeC1.c1,2001,0117:30:00,27 ,0.284587,2.369041,0.976076,0.443216
sgpcmbeC1.c1,2001,0118:30:00,26 ,0.284653,3.069772,1.029469,0.576982
sgpcmbeC1.c1,2001,0119:30:00,25 ,0.262385,3.660778,1.000165,0.656727
sgpcmbeC1.c1,2001,0120:30:00,26 ,0.245313,4.311457,1.049807, 0.77053
sgpcmbeC1.c1,2001,0121:30:00,26 ,0.236817,3.546108,1.010892,0.633301
sgpcmbeC1.c1,2001,0122:30:00,25 ,0.235789,1.950005,0.919856, 0.37102
sgpcmbeC1.c1,2001,0123:30:00,25 ,0.234918,1.965453,0.928045,0.376912