datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,07 0:30:00,31 ,       0,0.853721,0.044065, 0.17617
sgpcmbeC1.c1,1997,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 3:30:00,31 ,       0,0.926625,0.029891,0.166427
sgpcmbeC1.c1,1997,07 4:30:00,31 ,       0,1.060557,0.034212,0.190482
sgpcmbeC1.c1,1997,07 5:30:00,31 ,1.140911,24.45464,9.938697,5.171167
sgpcmbeC1.c1,1997,07 6:30:00,31 , 2.11469,37.14873,17.03546,8.495401
sgpcmbeC1.c1,1997,07 7:30:00,31 ,1.632376,51.33395,13.77461, 12.4716
sgpcmbeC1.c1,1997,07 8:30:00,31 ,0.957598,118.0897,22.54557,25.07235
sgpcmbeC1.c1,1997,07 9:30:00,31 ,  1.6895,111.0108,27.61024,31.24026
sgpcmbeC1.c1,1997,0710:30:00,31 ,1.143059,151.9246,39.91945,40.33828
sgpcmbeC1.c1,1997,0711:30:00,31 ,1.333329,133.2158,37.91836,37.05249
sgpcmbeC1.c1,1997,0712:30:00,31 ,1.678452,160.9907,36.94288,38.99118
sgpcmbeC1.c1,1997,0713:30:00,31 ,1.362468,151.2268,33.57311,39.52832
sgpcmbeC1.c1,1997,0714:30:00,31 , 0.76949,70.12636,24.54101,20.39985
sgpcmbeC1.c1,1997,0715:30:00,31 ,1.406687,107.0094,24.74631,27.47279
sgpcmbeC1.c1,1997,0716:30:00,31 , 1.15189,56.26992,17.61653,14.97614
sgpcmbeC1.c1,1997,0717:30:00,31 ,3.985959,101.9296,17.78069,22.21126
sgpcmbeC1.c1,1997,0718:30:00,31 ,6.433986,45.17968,15.05754,8.861352
sgpcmbeC1.c1,1997,0719:30:00,31 ,7.336659,44.16305,15.15708,6.793126
sgpcmbeC1.c1,1997,0720:30:00,31 ,       0,0.836987,0.042774,0.171557
sgpcmbeC1.c1,1997,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0722:30:00,31 ,       0,0.628298,0.038652,0.149806
sgpcmbeC1.c1,1997,0723:30:00,31 ,       0,0.354769,0.011444,0.063718