datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,12 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 7:30:00,31 ,0.866453,20.67026,9.513876,4.908352
sgpcmbeC1.c1,1999,12 8:30:00,31 ,5.450109,58.12239,38.67759,15.75723
sgpcmbeC1.c1,1999,12 9:30:00,31 ,6.186465,97.00972,44.59861,20.82181
sgpcmbeC1.c1,1999,1210:30:00,31 ,16.24149,125.7618, 45.2041,23.97117
sgpcmbeC1.c1,1999,1211:30:00,31 ,14.69806,145.9911,41.18993,35.80421
sgpcmbeC1.c1,1999,1212:30:00,31 ,1.947401,151.3528,36.13705,47.24181
sgpcmbeC1.c1,1999,1213:30:00,31 ,3.563621,166.4989,42.36588,38.92905
sgpcmbeC1.c1,1999,1214:30:00,31 ,5.502341,114.2622,47.48556,28.40036
sgpcmbeC1.c1,1999,1215:30:00,31 ,4.324172,92.26769,41.06228,15.26585
sgpcmbeC1.c1,1999,1216:30:00,31 ,2.955673,75.88183,39.96582,18.41543
sgpcmbeC1.c1,1999,1217:30:00,31 ,       0,11.85972,   5.369,3.344197
sgpcmbeC1.c1,1999,1218:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1219:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1220:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1221:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1222:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1223:30:00,29 ,       0,       0,       0,       0