datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,12 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,12 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,12 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,12 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,12 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,12 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,12 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,12 7:30:00,3 ,0.002495,0.217647,0.074644,0.123846
sgpcmbeC1.c1,2006,12 8:30:00,31 ,0.003592,0.995944, 0.46856,0.432537
sgpcmbeC1.c1,2006,12 9:30:00,31 ,0.001565,0.999993,0.485507,0.473338
sgpcmbeC1.c1,2006,1210:30:00,31 , 0.00051,       1, 0.49253,0.485544
sgpcmbeC1.c1,2006,1211:30:00,31 ,0.001166,       1,0.486103,0.469129
sgpcmbeC1.c1,2006,1212:30:00,31 ,0.000583,0.999997,0.485818,0.456888
sgpcmbeC1.c1,2006,1213:30:00,31 ,0.001499, 0.99999,0.457533,0.456316
sgpcmbeC1.c1,2006,1214:30:00,31 , 0.00099,0.999993,0.447937,0.446001
sgpcmbeC1.c1,2006,1215:30:00,31 ,0.000655,0.999984,0.395233,0.433088
sgpcmbeC1.c1,2006,1216:30:00,31 ,0.000497,0.993549,0.338887,0.409983
sgpcmbeC1.c1,2006,1217:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,1218:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,1219:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,1220:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,1221:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,1222:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,1223:30:00,0 ,       .,       .,       .,       .