datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,01 0:30:00,30 ,0.295979,63.99731,11.86302,15.90051
sgpcmbeC1.c1,1998,01 1:30:00,30 ,0.016458,125.3262,14.94914,28.33214
sgpcmbeC1.c1,1998,01 2:30:00,30 ,0.235036,99.66412,12.16234,  19.605
sgpcmbeC1.c1,1998,01 3:30:00,30 ,0.224277,107.2711,13.40326,21.63465
sgpcmbeC1.c1,1998,01 4:30:00,30 ,0.385623,106.2094, 13.0761,20.27608
sgpcmbeC1.c1,1998,01 5:30:00,30 ,0.138836,72.41895, 14.9759,18.81438
sgpcmbeC1.c1,1998,01 6:30:00,30 ,0.649393,64.16973,11.89417,15.22832
sgpcmbeC1.c1,1998,01 7:30:00,30 ,0.380339,158.0496,18.49328,31.96189
sgpcmbeC1.c1,1998,01 8:30:00,31 ,0.148287,133.5855,18.25492,32.78045
sgpcmbeC1.c1,1998,01 9:30:00,31 ,0.005463,176.2196,21.91417,41.76074
sgpcmbeC1.c1,1998,0110:30:00,30 ,       0,129.3985,18.96923,26.00911
sgpcmbeC1.c1,1998,0111:30:00,30 ,       0,174.2266, 19.8988,33.59965
sgpcmbeC1.c1,1998,0112:30:00,28 ,       0,72.27574,17.83858,19.99835
sgpcmbeC1.c1,1998,0113:30:00,27 ,0.074209,54.45697,17.81927,16.98482
sgpcmbeC1.c1,1998,0114:30:00,26 ,1.264099,37.55929,13.99801, 12.6828
sgpcmbeC1.c1,1998,0115:30:00,24 ,1.660355,108.3664, 17.6185,23.19641
sgpcmbeC1.c1,1998,0116:30:00,26 , 1.44058,54.57618,13.33502,13.21356
sgpcmbeC1.c1,1998,0117:30:00,30 , 1.05887, 101.041,12.89965,20.29653
sgpcmbeC1.c1,1998,0118:30:00,31 ,0.736868, 76.4313,14.43571,18.63716
sgpcmbeC1.c1,1998,0119:30:00,31 ,0.260108,78.08075, 17.3467,22.19302
sgpcmbeC1.c1,1998,0120:30:00,31 ,0.028312,119.9652,19.95357,30.14602
sgpcmbeC1.c1,1998,0121:30:00,31 ,       0,119.4475,20.36681,34.71986
sgpcmbeC1.c1,1998,0122:30:00,31 ,       0,181.2932,21.47064,39.84732
sgpcmbeC1.c1,1998,0123:30:00,31 , 0.56323, 101.121,17.60628,24.59279