datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,03 0:30:00,12 ,0.420217,2.540091,1.489976,0.631833
sgpcmbeC1.c1,2006,03 1:30:00,12 ,0.394837,2.562697,1.534993,0.662696
sgpcmbeC1.c1,2006,03 2:30:00,12 ,0.406447,2.613291,1.587756,0.704779
sgpcmbeC1.c1,2006,03 3:30:00,12 ,0.418696, 2.65282,1.607367,0.697208
sgpcmbeC1.c1,2006,03 4:30:00,12 ,0.426287,2.520536,1.568947,0.687695
sgpcmbeC1.c1,2006,03 5:30:00,12 ,0.410026,2.510687,1.528623,0.726152
sgpcmbeC1.c1,2006,03 6:30:00,12 ,0.418795,2.642823,1.501351,0.751953
sgpcmbeC1.c1,2006,03 7:30:00,12 ,0.405092, 2.62566,1.462365,0.712625
sgpcmbeC1.c1,2006,03 8:30:00,14 ,0.422493,3.312872,1.612736,0.833964
sgpcmbeC1.c1,2006,03 9:30:00,15 ,0.457742,3.455325,1.580029,0.867058
sgpcmbeC1.c1,2006,0310:30:00,16 , 0.50226,3.278007,1.513425,0.840838
sgpcmbeC1.c1,2006,0311:30:00,17 ,0.547846,3.109762,1.482319,0.807303
sgpcmbeC1.c1,2006,0312:30:00,17 ,0.528804,3.011611,1.474628,0.796298
sgpcmbeC1.c1,2006,0313:30:00,16 ,0.552497,2.900227,1.410121,0.748532
sgpcmbeC1.c1,2006,0314:30:00,16 ,0.538185,2.902331,1.404491,0.715603
sgpcmbeC1.c1,2006,0315:30:00,16 ,0.536668,2.937549,1.444436,0.723207
sgpcmbeC1.c1,2006,0316:30:00,17 ,0.572157,2.814405,1.461539,0.691627
sgpcmbeC1.c1,2006,0317:30:00,15 ,0.564736,2.799906,1.282257,0.546416
sgpcmbeC1.c1,2006,0318:30:00,14 ,0.556584,2.776822,1.418376,0.709277
sgpcmbeC1.c1,2006,0319:30:00,14 ,0.565632,2.834784,1.469857,0.735543
sgpcmbeC1.c1,2006,0320:30:00,13 ,0.523242,2.766349, 1.52466,0.698738
sgpcmbeC1.c1,2006,0321:30:00,13 ,0.457804,2.765835,1.517845,0.701342
sgpcmbeC1.c1,2006,0322:30:00,13 ,0.437251,  2.8344,1.494387,0.694572
sgpcmbeC1.c1,2006,0323:30:00,13 ,0.440855,2.605671,1.470534,0.621404