datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,02 0:30:00,25 ,0.012927,0.050442,0.021313,0.008438
sgpcmbeC1.c1,1998,02 1:30:00,25 ,0.012258,0.100655,0.022159,0.018053
sgpcmbeC1.c1,1998,02 2:30:00,25 ,0.012038, 0.05684,0.023994,0.011045
sgpcmbeC1.c1,1998,02 3:30:00,25 ,0.010708,0.095601,0.026914,0.020981
sgpcmbeC1.c1,1998,02 4:30:00,25 , 0.01144,0.062386,0.019522,0.010991
sgpcmbeC1.c1,1998,02 5:30:00,25 ,0.011656,0.060426,0.022348,0.010221
sgpcmbeC1.c1,1998,02 6:30:00,25 ,0.012252,0.067179,0.021758,0.014286
sgpcmbeC1.c1,1998,02 7:30:00,25 ,0.010898,0.261715,0.035896,0.054829
sgpcmbeC1.c1,1998,02 8:30:00,25 ,0.011579,0.507362,0.043991,0.098983
sgpcmbeC1.c1,1998,02 9:30:00,25 ,0.012869,0.112103,0.028976, 0.02769
sgpcmbeC1.c1,1998,0210:30:00,25 ,0.012943,0.123305,0.029117,0.026537
sgpcmbeC1.c1,1998,0211:30:00,24 ,0.009827,0.369119,0.041905,0.075945
sgpcmbeC1.c1,1998,0212:30:00,25 ,0.011548,0.343008,0.041532, 0.07189
sgpcmbeC1.c1,1998,0213:30:00,23 ,0.008617,0.113104,0.029206,0.022546
sgpcmbeC1.c1,1998,0214:30:00,23 ,0.013544,0.059539,0.023684,0.012662
sgpcmbeC1.c1,1998,0215:30:00,21 ,0.013646,0.115541,0.025793,0.021662
sgpcmbeC1.c1,1998,0216:30:00,21 ,0.011312,0.086006,0.024469,0.017734
sgpcmbeC1.c1,1998,0217:30:00,24 ,0.013033,0.114519, 0.02458,0.021065
sgpcmbeC1.c1,1998,0218:30:00,25 , 0.01149,0.033532,0.018565,0.005414
sgpcmbeC1.c1,1998,0219:30:00,24 ,0.012572,0.049358,0.022147,  0.0095
sgpcmbeC1.c1,1998,0220:30:00,25 ,0.012246,0.057188,0.024601,0.015453
sgpcmbeC1.c1,1998,0221:30:00,25 ,0.011482,0.063119,0.020707,0.010339
sgpcmbeC1.c1,1998,0222:30:00,25 ,0.013477,0.050372,0.020022,0.008748
sgpcmbeC1.c1,1998,0223:30:00,25 , 0.01214,0.096574,0.026051,0.017381