datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,02 0:30:00,25 ,       0,276.2431,22.62233,56.75146
sgpcmbeC1.c1,2003,02 1:30:00,25 ,0.038888,218.2628,19.83097,45.29366
sgpcmbeC1.c1,2003,02 2:30:00,25 ,       0,192.6507,17.99557, 39.3548
sgpcmbeC1.c1,2003,02 3:30:00,26 ,       0,121.0267,18.00638,27.04284
sgpcmbeC1.c1,2003,02 4:30:00,26 ,       0,374.4146,26.05957,72.16633
sgpcmbeC1.c1,2003,02 5:30:00,26 ,       0, 114.883,19.09895,28.81876
sgpcmbeC1.c1,2003,02 6:30:00,26 ,       0,111.9905,18.16206,25.74502
sgpcmbeC1.c1,2003,02 7:30:00,26 ,       0, 109.806,17.96012,27.60249
sgpcmbeC1.c1,2003,02 8:30:00,26 ,       0,50.54621,10.83579,13.06677
sgpcmbeC1.c1,2003,02 9:30:00,26 ,       0,109.4626,17.12413, 26.1841
sgpcmbeC1.c1,2003,0210:30:00,26 ,       0,209.1765,28.12374,52.16706
sgpcmbeC1.c1,2003,0211:30:00,26 ,       0,171.9937,24.23854,42.56727
sgpcmbeC1.c1,2003,0212:30:00,26 ,       0,264.8859,31.56393,57.02708
sgpcmbeC1.c1,2003,0213:30:00,26 ,       0,182.9182,31.14945,52.97135
sgpcmbeC1.c1,2003,0214:30:00,26 ,0.212101,174.0405,30.83742,50.37821
sgpcmbeC1.c1,2003,0215:30:00,26 ,0.136217,145.3849,  23.817,40.04097
sgpcmbeC1.c1,2003,0216:30:00,25 ,0.237165,183.9354,24.44591,44.66611
sgpcmbeC1.c1,2003,0217:30:00,26 ,0.070059,266.8186,33.30262,69.15399
sgpcmbeC1.c1,2003,0218:30:00,26 ,0.123818,295.0636,28.93417,65.34624
sgpcmbeC1.c1,2003,0219:30:00,26 ,0.063039, 247.737,25.01985,48.96405
sgpcmbeC1.c1,2003,0220:30:00,26 ,0.053085,231.4843,29.24666,53.78129
sgpcmbeC1.c1,2003,0221:30:00,25 ,       0,177.4501,18.69497, 37.7717
sgpcmbeC1.c1,2003,0222:30:00,26 ,       0,138.2978, 19.3804,35.84407
sgpcmbeC1.c1,2003,0223:30:00,26 ,       0,248.8283,29.31351,58.20341