datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,02 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,02 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,02 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,02 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,02 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,02 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,02 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,02 7:30:00,23 ,0.000046, 0.99992,0.596267,0.447394
sgpcmbeC1.c1,2003,02 8:30:00,28 ,  4.2E-6,       1,0.715105,0.427595
sgpcmbeC1.c1,2003,02 9:30:00,28 , 0.00005,       1,0.698579, 0.42191
sgpcmbeC1.c1,2003,0210:30:00,28 ,0.000209,       1,0.654294,0.453257
sgpcmbeC1.c1,2003,0211:30:00,28 ,0.000198,       1,0.655205,0.444209
sgpcmbeC1.c1,2003,0212:30:00,28 ,0.000397,       1,0.637101,0.435833
sgpcmbeC1.c1,2003,0213:30:00,28 , 0.00037,       1,0.676936,0.433902
sgpcmbeC1.c1,2003,0214:30:00,28 ,0.000109,       1,0.702161,0.412765
sgpcmbeC1.c1,2003,0215:30:00,28 ,0.000046,0.999925,0.666717,0.433725
sgpcmbeC1.c1,2003,0216:30:00,28 ,0.000055,0.999996,0.605817,0.456465
sgpcmbeC1.c1,2003,0217:30:00,28 ,0.000712,0.994866,0.561339, 0.44307
sgpcmbeC1.c1,2003,0218:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0219:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0220:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0221:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0222:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0223:30:00,0 ,       .,       .,       .,       .