datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,08 0:30:00,31 ,0.814414,14.02102, 4.11525,3.941741
sgpcmbeC1.c1,2004,08 1:30:00,31 , 0.82646,22.11492,3.659601,4.428673
sgpcmbeC1.c1,2004,08 2:30:00,31 , 0.79734, 11.4245,3.070492,2.559111
sgpcmbeC1.c1,2004,08 3:30:00,31 ,0.875955,9.267953,2.924105,2.464768
sgpcmbeC1.c1,2004,08 4:30:00,31 ,0.749823,  20.978,4.919015,4.868352
sgpcmbeC1.c1,2004,08 5:30:00,31 ,0.689208,14.21973,4.117892,3.696342
sgpcmbeC1.c1,2004,08 6:30:00,31 ,0.713595,19.38263,4.187477,4.575848
sgpcmbeC1.c1,2004,08 7:30:00,31 ,1.030159,22.65936, 5.24846,4.773243
sgpcmbeC1.c1,2004,08 8:30:00,31 ,1.493633, 25.0211,6.407471,6.039998
sgpcmbeC1.c1,2004,08 9:30:00,31 ,1.229761,12.84977,4.824066,3.343216
sgpcmbeC1.c1,2004,0810:30:00,31 ,1.346703,20.10299,5.019224,4.747067
sgpcmbeC1.c1,2004,0811:30:00,31 ,1.277079,10.85884,3.967022,2.452123
sgpcmbeC1.c1,2004,0812:30:00,31 ,1.350805,19.34267,3.748741,3.603918
sgpcmbeC1.c1,2004,0813:30:00,30 ,1.301796,8.612693,2.862862,1.697506
sgpcmbeC1.c1,2004,0814:30:00,31 ,1.261997,8.093516,3.587986,1.956039
sgpcmbeC1.c1,2004,0815:30:00,31 ,1.112968,10.38865,3.216356,  2.2426
sgpcmbeC1.c1,2004,0816:30:00,31 , 1.31801, 8.22299,3.196021, 1.85891
sgpcmbeC1.c1,2004,0817:30:00,31 , 1.33556,11.38457,3.384134,2.495387
sgpcmbeC1.c1,2004,0818:30:00,31 ,1.161878,10.05241,3.644237,2.394121
sgpcmbeC1.c1,2004,0819:30:00,31 ,1.164399,12.80364, 3.51465,2.049458
sgpcmbeC1.c1,2004,0820:30:00,31 ,0.882752,6.558056,2.281946,1.465656
sgpcmbeC1.c1,2004,0821:30:00,31 ,0.662082,13.42107,2.353115,2.525621
sgpcmbeC1.c1,2004,0822:30:00,31 ,0.894355,17.15663,3.354455,3.811178
sgpcmbeC1.c1,2004,0823:30:00,31 ,0.782106, 10.1466, 2.83427,2.498157