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 ,0.861726, 13.3829,6.447202,2.924762
sgpcmbeC1.c1,1999,12 8:30:00,31 ,5.437671, 44.4472,16.51915,11.31786
sgpcmbeC1.c1,1999,12 9:30:00,31 ,2.468134, 47.7074, 16.2793,13.73605
sgpcmbeC1.c1,1999,1210:30:00,31 ,1.116725,69.82603,14.84964,16.20883
sgpcmbeC1.c1,1999,1211:30:00,31 ,0.307305,62.78443,17.42039,18.56096
sgpcmbeC1.c1,1999,1212:30:00,31 ,0.136558,67.34071, 18.9156,22.40468
sgpcmbeC1.c1,1999,1213:30:00,31 ,0.537878,79.48314,17.08081,20.98984
sgpcmbeC1.c1,1999,1214:30:00,31 , 1.05667,62.51473, 16.0346,17.96578
sgpcmbeC1.c1,1999,1215:30:00,31 ,2.424253,36.17999,11.36626,10.46239
sgpcmbeC1.c1,1999,1216:30:00,31 , 2.98306,31.71231,12.81447,8.134081
sgpcmbeC1.c1,1999,1217:30:00,31 ,       0,7.046587,3.836717,1.931349
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