datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,06 0:30:00,30 ,1.690991,4.729216,3.056083,0.779345
sgpcmbeC1.c1,1998,06 1:30:00,30 ,1.733122,5.140896,3.025877,0.840139
sgpcmbeC1.c1,1998,06 2:30:00,30 ,1.385755,5.069081,2.998638,0.823611
sgpcmbeC1.c1,1998,06 3:30:00,30 ,1.361314,4.871126,3.012184,0.801739
sgpcmbeC1.c1,1998,06 4:30:00,30 , 1.32788,5.113379,3.083854,0.883743
sgpcmbeC1.c1,1998,06 5:30:00,30 , 1.40151,4.985516,3.096826, 0.91345
sgpcmbeC1.c1,1998,06 6:30:00,30 ,1.484506,5.030637,3.104237,   0.893
sgpcmbeC1.c1,1998,06 7:30:00,30 ,1.562912,5.295377, 3.13608,0.924779
sgpcmbeC1.c1,1998,06 8:30:00,30 ,1.523989,5.885799,3.110886,0.972644
sgpcmbeC1.c1,1998,06 9:30:00,30 ,1.596192, 6.45976,3.099219,1.010038
sgpcmbeC1.c1,1998,0610:30:00,30 ,1.612953,5.012867, 3.03716,0.832568
sgpcmbeC1.c1,1998,0611:30:00,30 ,1.566146,5.242938, 3.06577,0.860325
sgpcmbeC1.c1,1998,0612:30:00,30 ,1.652752,4.710214,3.100086,0.814077
sgpcmbeC1.c1,1998,0613:30:00,30 ,1.633247,4.565497,3.126056,0.823807
sgpcmbeC1.c1,1998,0614:30:00,30 ,1.637851,4.585183,3.196938,0.856693
sgpcmbeC1.c1,1998,0615:30:00,30 ,1.590283,4.848768,3.322147,0.938353
sgpcmbeC1.c1,1998,0616:30:00,30 ,1.373054,5.171897,3.369157,1.004052
sgpcmbeC1.c1,1998,0617:30:00,29 ,1.360814,5.286724,3.275976,0.996235
sgpcmbeC1.c1,1998,0618:30:00,29 ,1.463379,5.453221,3.141757,0.951399
sgpcmbeC1.c1,1998,0619:30:00,30 ,1.443703,5.386091, 3.16825,1.013381
sgpcmbeC1.c1,1998,0620:30:00,30 ,  1.4767,5.233426,3.153415,0.942138
sgpcmbeC1.c1,1998,0621:30:00,30 ,1.547668,5.100772,3.120082,0.862057
sgpcmbeC1.c1,1998,0622:30:00,30 , 1.61402,5.091971,3.127967,0.844955
sgpcmbeC1.c1,1998,0623:30:00,30 ,1.613498,5.185345, 3.14329,0.857101