datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,12 0:30:00,29 ,       0,2.609236,0.868875,0.867117
sgpcmbeC1.c1,2006,12 1:30:00,25 ,       0, 2.54981,0.838312,0.800606
sgpcmbeC1.c1,2006,12 2:30:00,28 ,       0, 2.44859,0.873641,0.833397
sgpcmbeC1.c1,2006,12 3:30:00,27 ,       0,2.455726,0.807337,0.848268
sgpcmbeC1.c1,2006,12 4:30:00,26 ,       0,2.445571,0.815099,0.895754
sgpcmbeC1.c1,2006,12 5:30:00,27 ,       0, 2.89371,0.970387, 0.95943
sgpcmbeC1.c1,2006,12 6:30:00,30 ,       0,2.585673,0.629206,0.839727
sgpcmbeC1.c1,2006,12 7:30:00,31 ,0.000353,20.53156,7.209034,5.903382
sgpcmbeC1.c1,2006,12 8:30:00,31 ,5.979911, 172.207,85.43167,52.15642
sgpcmbeC1.c1,2006,12 9:30:00,31 ,20.81814, 350.866,203.6961,107.2289
sgpcmbeC1.c1,2006,1210:30:00,31 ,32.00708,482.4635,302.7604,154.5875
sgpcmbeC1.c1,2006,1211:30:00,31 ,53.27198,565.8605,375.3451,170.3231
sgpcmbeC1.c1,2006,1212:30:00,31 , 63.9764,590.6669,409.9187,165.6845
sgpcmbeC1.c1,2006,1213:30:00,31 ,52.30339,580.9008,378.5515,151.1419
sgpcmbeC1.c1,2006,1214:30:00,31 ,49.43559,432.4164,313.4985,121.1495
sgpcmbeC1.c1,2006,1215:30:00,31 , 15.0817,268.3108,196.0221,  73.627
sgpcmbeC1.c1,2006,1216:30:00,31 ,4.149824,110.0498,71.40754,30.88606
sgpcmbeC1.c1,2006,1217:30:00,31 ,       0, 9.38859, 3.49881,  2.4838
sgpcmbeC1.c1,2006,1218:30:00,31 ,       0,2.497611,0.891855,0.939079
sgpcmbeC1.c1,2006,1219:30:00,29 , -0.0339, 2.68721,0.940834,0.984696
sgpcmbeC1.c1,2006,1220:30:00,29 ,       0,2.564688,0.931824,0.857188
sgpcmbeC1.c1,2006,1221:30:00,27 ,       0,2.755331,0.862184,0.871613
sgpcmbeC1.c1,2006,1222:30:00,28 ,-0.14286, 2.67102,0.744496, 0.83365
sgpcmbeC1.c1,2006,1223:30:00,29 ,       0,2.703951,0.917408,0.926449