datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,11 0:30:00,23 ,0.684151,3.718924,1.625137,0.833618
sgpcmbeC1.c1,2004,11 1:30:00,24 ,0.647184,4.349747,1.734322,0.961448
sgpcmbeC1.c1,2004,11 2:30:00,25 ,0.648185,3.656225,1.719693,0.852215
sgpcmbeC1.c1,2004,11 3:30:00,27 ,0.600335,   4.396,1.868601,0.996004
sgpcmbeC1.c1,2004,11 4:30:00,27 ,0.559056,4.874257,1.932762,1.055756
sgpcmbeC1.c1,2004,11 5:30:00,28 , 0.54116, 4.59062,1.972798,1.059298
sgpcmbeC1.c1,2004,11 6:30:00,26 ,0.566571,3.528994,1.729193,0.804226
sgpcmbeC1.c1,2004,11 7:30:00,26 ,0.539449,3.497021,1.667874,0.774236
sgpcmbeC1.c1,2004,11 8:30:00,27 ,0.517863,5.306845,1.778856,1.031121
sgpcmbeC1.c1,2004,11 9:30:00,27 ,0.513024,4.262631,1.760488,0.972338
sgpcmbeC1.c1,2004,1110:30:00,27 ,0.540109,4.128988, 1.69482,0.888076
sgpcmbeC1.c1,2004,1111:30:00,27 ,0.583666,3.808799,1.696449,0.864677
sgpcmbeC1.c1,2004,1112:30:00,26 ,0.474043,4.044836,1.696622,0.904181
sgpcmbeC1.c1,2004,1113:30:00,25 ,0.482515,4.382083,1.761383,0.958406
sgpcmbeC1.c1,2004,1114:30:00,24 ,0.479362,3.699484,1.770751,0.907127
sgpcmbeC1.c1,2004,1115:30:00,24 ,0.504358,3.619098,1.743355,0.869865
sgpcmbeC1.c1,2004,1116:30:00,24 ,0.509339,3.640533,1.739169,0.838402
sgpcmbeC1.c1,2004,1117:30:00,23 ,0.493311,4.702957,1.789656,1.006001
sgpcmbeC1.c1,2004,1118:30:00,24 ,0.421839,4.084857,1.771207,1.028968
sgpcmbeC1.c1,2004,1119:30:00,24 ,0.338938,3.828012,1.684414,0.912828
sgpcmbeC1.c1,2004,1120:30:00,25 , 0.32477, 4.28534,1.732323,0.985886
sgpcmbeC1.c1,2004,1121:30:00,25 , 0.33533,3.771601,1.730128,0.959301
sgpcmbeC1.c1,2004,1122:30:00,24 ,0.360939,3.756723,1.616468,0.841361
sgpcmbeC1.c1,2004,1123:30:00,23 ,0.349009,3.705981,  1.5037,0.743361