datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,16 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 1:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 2:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 3:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 4:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 5:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 6:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 7:30:00,30 ,       0,6.073731,1.450791,1.717751
sgpcmbeC1.c1,2007,12 8:30:00,30 ,0.019219, 85.9111, 24.6411,22.91279
sgpcmbeC1.c1,2007,12 9:30:00,29 ,2.462366,202.8732,56.39225,50.98235
sgpcmbeC1.c1,2007,1210:30:00,29 ,3.370978,295.5659,80.69365,72.46954
sgpcmbeC1.c1,2007,1211:30:00,30 ,5.875638,347.2169,101.9708,90.23616
sgpcmbeC1.c1,2007,1212:30:00,30 ,4.109743,341.9365,105.2286,90.21612
sgpcmbeC1.c1,2007,1213:30:00,30 ,6.820505,284.0348,98.86592,79.72163
sgpcmbeC1.c1,2007,1214:30:00,30 ,4.188241,226.3578,79.43363,62.61393
sgpcmbeC1.c1,2007,1215:30:00,30 ,3.115773,140.9115,52.56963,38.30794
sgpcmbeC1.c1,2007,1216:30:00,30 ,0.902708,53.40746,20.17957,15.21117
sgpcmbeC1.c1,2007,1217:30:00,30 ,       0, 2.67272,0.809341,0.858337
sgpcmbeC1.c1,2007,1218:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1219:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1220:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1221:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1222:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1223:30:00,15 ,       0,       0,       0,       0