datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,07 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,07 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,07 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,07 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,07 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,07 5:30:00,20 ,0.004204,  0.9636,0.156645,0.264143
sgpcmbeC1.c1,2002,07 6:30:00,31 ,0.003616,0.999357,0.380582,0.352175
sgpcmbeC1.c1,2002,07 7:30:00,31 ,0.002768,       1,0.498237,0.408711
sgpcmbeC1.c1,2002,07 8:30:00,31 ,0.004037,       1,   0.576,0.445703
sgpcmbeC1.c1,2002,07 9:30:00,31 , 0.00476,       1,0.603708,0.446523
sgpcmbeC1.c1,2002,0710:30:00,31 ,0.003302,       1,0.549012,0.456686
sgpcmbeC1.c1,2002,0711:30:00,31 ,0.008628,       1, 0.50569,0.395231
sgpcmbeC1.c1,2002,0712:30:00,31 ,0.005118,       1,0.527533,0.406257
sgpcmbeC1.c1,2002,0713:30:00,31 ,0.001591,       1,0.587715,0.380729
sgpcmbeC1.c1,2002,0714:30:00,31 ,0.000737,       1, 0.64039,0.365369
sgpcmbeC1.c1,2002,0715:30:00,31 ,0.001614,       1,0.617546,0.379194
sgpcmbeC1.c1,2002,0716:30:00,31 ,0.002438,       1,0.551003,0.393952
sgpcmbeC1.c1,2002,0717:30:00,31 ,0.003931,       1,0.444555,0.341817
sgpcmbeC1.c1,2002,0718:30:00,31 ,0.009408,0.999979,0.388083,0.347295
sgpcmbeC1.c1,2002,0719:30:00,31 ,0.001513,0.999845,0.198744,0.324446
sgpcmbeC1.c1,2002,0720:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,0721:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,0722:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,0723:30:00,0 ,       .,       .,       .,       .