datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,02 0:30:00,28 , 0.14572,13.00914, 1.84163,2.631077
sgpcmbeC1.c1,2001,02 1:30:00,28 ,0.322996,  10.639,1.878559,2.094375
sgpcmbeC1.c1,2001,02 2:30:00,28 ,0.238138,16.48671,2.951039,3.987955
sgpcmbeC1.c1,2001,02 3:30:00,28 ,0.147745,9.866403,2.290131,2.360571
sgpcmbeC1.c1,2001,02 4:30:00,28 ,0.193578,12.18542,2.897224,3.039245
sgpcmbeC1.c1,2001,02 5:30:00,28 ,0.266972,9.290885,2.825457,2.746053
sgpcmbeC1.c1,2001,02 6:30:00,28 ,0.156708,9.871153,2.377173, 2.65005
sgpcmbeC1.c1,2001,02 7:30:00,28 ,0.275818,16.17575,2.667191,3.297239
sgpcmbeC1.c1,2001,02 8:30:00,28 ,0.294479,26.76244,4.776884,6.088322
sgpcmbeC1.c1,2001,02 9:30:00,28 ,0.310288,9.255235,2.302497,2.171891
sgpcmbeC1.c1,2001,0210:30:00,28 ,0.526554,17.16276,3.679111,4.055178
sgpcmbeC1.c1,2001,0211:30:00,28 ,0.696948,7.677489,2.951554,2.325207
sgpcmbeC1.c1,2001,0212:30:00,28 , 0.46246, 17.8515,3.867651, 4.38246
sgpcmbeC1.c1,2001,0213:30:00,28 ,0.621521,23.26122,4.167251,5.514303
sgpcmbeC1.c1,2001,0214:30:00,28 ,0.349189,13.20123,3.294636,3.557892
sgpcmbeC1.c1,2001,0215:30:00,28 ,0.299872,14.52295,3.644236,4.070503
sgpcmbeC1.c1,2001,0216:30:00,28 ,0.354125,19.01062,3.548529, 4.20358
sgpcmbeC1.c1,2001,0217:30:00,28 ,0.210617,19.85993,2.984884,4.562408
sgpcmbeC1.c1,2001,0218:30:00,28 , 0.25184,18.60681,2.933845,4.783167
sgpcmbeC1.c1,2001,0219:30:00,28 ,0.160615,19.10262, 2.57461,4.756064
sgpcmbeC1.c1,2001,0220:30:00,28 ,0.270608,22.77368,4.239315,6.662014
sgpcmbeC1.c1,2001,0221:30:00,28 ,0.215021,24.43304,3.164568,5.781282
sgpcmbeC1.c1,2001,0222:30:00,28 ,0.203447,32.72861,3.624497,7.164104
sgpcmbeC1.c1,2001,0223:30:00,28 ,0.244262,24.68624,3.009012, 5.79986