datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,11 0:30:00,4 ,0.547832,1.227996,0.891783,0.325922
sgpcmbeC1.c1,2005,11 1:30:00,4 , 0.58403,1.248702, 0.88058,0.304467
sgpcmbeC1.c1,2005,11 2:30:00,4 ,0.563974,1.265172, 0.83994,0.309089
sgpcmbeC1.c1,2005,11 3:30:00,4 , 0.59953, 1.29654,0.824277,0.320973
sgpcmbeC1.c1,2005,11 4:30:00,4 ,0.631616,1.357077,0.832905, 0.35121
sgpcmbeC1.c1,2005,11 5:30:00,4 ,0.597835,1.353803,0.804601,0.366526
sgpcmbeC1.c1,2005,11 6:30:00,4 ,0.539903, 1.34128,0.794412,0.372443
sgpcmbeC1.c1,2005,11 7:30:00,4 ,0.503101,1.302035,0.775514,0.376138
sgpcmbeC1.c1,2005,11 8:30:00,5 ,0.424258,1.262815,0.774084,0.345184
sgpcmbeC1.c1,2005,11 9:30:00,9 ,0.377133,1.269684,0.904577,0.313322
sgpcmbeC1.c1,2005,1110:30:00,9 ,0.342257, 1.22662,0.891519,0.310575
sgpcmbeC1.c1,2005,1111:30:00,8 ,0.358992,1.229703,0.897352,0.324184
sgpcmbeC1.c1,2005,1112:30:00,7 ,0.378396,1.231569,0.947926,0.293103
sgpcmbeC1.c1,2005,1113:30:00,9 ,0.376259, 1.23155,0.922381,0.296069
sgpcmbeC1.c1,2005,1114:30:00,8 ,0.374301,1.313357, 0.93404,0.335251
sgpcmbeC1.c1,2005,1115:30:00,9 ,0.386921,1.312449,0.957023,  0.3106
sgpcmbeC1.c1,2005,1116:30:00,8 ,0.385104,1.283063,0.985917,0.343914
sgpcmbeC1.c1,2005,1117:30:00,7 ,  0.3874,1.264326,0.941052,0.355638
sgpcmbeC1.c1,2005,1118:30:00,7 ,0.409543,1.228981, 0.90762,0.323177
sgpcmbeC1.c1,2005,1119:30:00,6 ,0.422016,1.265671,0.832528,0.328683
sgpcmbeC1.c1,2005,1120:30:00,6 ,0.396323,1.225303,0.785229, 0.33067
sgpcmbeC1.c1,2005,1121:30:00,5 , 0.40579,1.284963,0.828163,0.373096
sgpcmbeC1.c1,2005,1122:30:00,5 ,0.477626,1.266427,0.836884,0.367421
sgpcmbeC1.c1,2005,1123:30:00,5 ,0.475987,1.184119,0.799732,0.346706