datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,12 0:30:00,20 ,0.105961,35.62933,3.025207,7.821709
sgpcmbeC1.c1,2001,12 1:30:00,19 ,0.174526,71.04244,5.847657,16.57262
sgpcmbeC1.c1,2001,12 2:30:00,19 ,       0,44.56199,5.695822,13.42663
sgpcmbeC1.c1,2001,12 3:30:00,19 ,       0,60.47486,4.712532,14.13809
sgpcmbeC1.c1,2001,12 4:30:00,18 ,       0,23.80123,2.514567,5.521498
sgpcmbeC1.c1,2001,12 5:30:00,18 ,       0,79.84536, 5.81097,18.52809
sgpcmbeC1.c1,2001,12 6:30:00,18 ,       0,104.1001,7.811265,24.40058
sgpcmbeC1.c1,2001,12 7:30:00,18 ,       0,119.0886, 8.34112,27.87925
sgpcmbeC1.c1,2001,12 8:30:00,19 ,       0,112.1179, 7.56276, 25.5694
sgpcmbeC1.c1,2001,12 9:30:00,23 ,       0,58.57435,3.868309, 12.0995
sgpcmbeC1.c1,2001,1210:30:00,23 ,       0,42.38979,3.208623,8.743723
sgpcmbeC1.c1,2001,1211:30:00,24 ,       0,14.85044,2.336968,3.248639
sgpcmbeC1.c1,2001,1212:30:00,24 ,       0,38.46681,3.983821,8.251672
sgpcmbeC1.c1,2001,1213:30:00,24 ,       0,31.36261,3.903442,7.462146
sgpcmbeC1.c1,2001,1214:30:00,24 ,       0,229.3369,19.58164,57.77872
sgpcmbeC1.c1,2001,1215:30:00,25 ,       0,193.6649,16.45762,43.43203
sgpcmbeC1.c1,2001,1216:30:00,24 ,       0,216.3752,28.88484,67.93978
sgpcmbeC1.c1,2001,1217:30:00,25 ,0.902274,227.6608,23.39041,57.85768
sgpcmbeC1.c1,2001,1218:30:00,25 ,0.230166,209.7178,16.60536,44.15415
sgpcmbeC1.c1,2001,1219:30:00,25 ,       0,305.8628,21.56977,67.18758
sgpcmbeC1.c1,2001,1220:30:00,25 ,       0,106.7229,9.769185,24.07741
sgpcmbeC1.c1,2001,1221:30:00,25 ,0.165543,122.9192,8.931834,25.42787
sgpcmbeC1.c1,2001,1222:30:00,24 ,       0,391.3737,23.39112,81.68183
sgpcmbeC1.c1,2001,1223:30:00,24 ,       0,104.9738,11.19303,26.92649