datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,07 0:30:00,31 ,       0,0.283111,0.011596,0.052222
sgpcmbeC1.c1,1997,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 3:30:00,31 ,       0,0.280773,0.009057,0.050428
sgpcmbeC1.c1,1997,07 4:30:00,31 ,       0,0.275206,0.008878,0.049428
sgpcmbeC1.c1,1997,07 5:30:00,31 ,0.302529,27.95615,9.581381,6.654436
sgpcmbeC1.c1,1997,07 6:30:00,31 , 8.25158,113.1009,57.44867,21.04876
sgpcmbeC1.c1,1997,07 7:30:00,31 ,8.982874,180.7757,100.9622,39.44306
sgpcmbeC1.c1,1997,07 8:30:00,31 ,30.71868, 303.996,138.2029,63.46073
sgpcmbeC1.c1,1997,07 9:30:00,31 ,38.98899,391.7691,170.6404,92.78284
sgpcmbeC1.c1,1997,0710:30:00,31 ,63.50649,562.8849,218.2804,127.8537
sgpcmbeC1.c1,1997,0711:30:00,31 ,94.13062,539.6337,246.3466,135.5836
sgpcmbeC1.c1,1997,0712:30:00,31 , 90.7149,490.4884,224.4161,124.7799
sgpcmbeC1.c1,1997,0713:30:00,31 ,62.31659,498.0508, 245.797,138.6298
sgpcmbeC1.c1,1997,0714:30:00,31 , 89.9034,452.6201,221.4247,116.9133
sgpcmbeC1.c1,1997,0715:30:00,31 , 68.2773,395.2807,193.6706,100.8126
sgpcmbeC1.c1,1997,0716:30:00,31 ,39.72979,302.5332,144.2793,67.75291
sgpcmbeC1.c1,1997,0717:30:00,31 ,25.82951,186.7846,108.8337,39.00923
sgpcmbeC1.c1,1997,0718:30:00,31 ,29.40753,126.7423,68.82963, 24.6389
sgpcmbeC1.c1,1997,0719:30:00,31 ,9.731095,40.48733,18.39308,7.584267
sgpcmbeC1.c1,1997,0720:30:00,31 ,       0,0.150319, 0.00715,0.029495
sgpcmbeC1.c1,1997,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0722:30:00,31 ,       0,0.117637,0.007472,0.028928
sgpcmbeC1.c1,1997,0723:30:00,31 ,       0,0.050172,0.001618,0.009011