datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,03 0:30:00,29 ,0.160488,28.44427,3.505996, 6.03025
sgpcmbeC1.c1,1999,03 1:30:00,29 ,0.262262,21.99989,3.470562,5.127243
sgpcmbeC1.c1,1999,03 2:30:00,29 ,  0.2733,29.29954,4.352195,6.958922
sgpcmbeC1.c1,1999,03 3:30:00,30 ,0.194767,16.59802,2.728812,4.339531
sgpcmbeC1.c1,1999,03 4:30:00,29 ,0.209655,16.03332,2.317263,3.925668
sgpcmbeC1.c1,1999,03 5:30:00,29 ,0.189716,22.11004,2.658403,4.646856
sgpcmbeC1.c1,1999,03 6:30:00,29 ,0.194704,19.77443,2.786811,4.598125
sgpcmbeC1.c1,1999,03 7:30:00,29 ,0.257338,18.55579,4.064166,5.511107
sgpcmbeC1.c1,1999,03 8:30:00,28 ,0.510807,15.38175,4.116793,4.185681
sgpcmbeC1.c1,1999,03 9:30:00,29 ,0.423925,21.54508,5.665294,5.728844
sgpcmbeC1.c1,1999,0310:30:00,29 ,0.503704,26.27492,5.884463,6.502971
sgpcmbeC1.c1,1999,0311:30:00,29 ,0.333496,12.52003,3.607164,3.398408
sgpcmbeC1.c1,1999,0312:30:00,30 ,  0.3312,14.73174,3.675089,3.737931
sgpcmbeC1.c1,1999,0313:30:00,30 ,0.337063,26.15603,4.772547, 5.76827
sgpcmbeC1.c1,1999,0314:30:00,30 ,0.450131,22.40182,3.889874,5.247224
sgpcmbeC1.c1,1999,0315:30:00,30 ,0.362647,25.69222,4.099095,5.575136
sgpcmbeC1.c1,1999,0316:30:00,30 ,0.409071,18.27209,3.464591,5.090656
sgpcmbeC1.c1,1999,0317:30:00,30 ,0.335987,18.94554,2.778316,3.481772
sgpcmbeC1.c1,1999,0318:30:00,30 ,0.230372,12.60064,3.111694,3.557342
sgpcmbeC1.c1,1999,0319:30:00,29 ,0.369066,32.57317,4.308867,7.247596
sgpcmbeC1.c1,1999,0320:30:00,29 ,0.356169,15.63953,2.552668,3.232489
sgpcmbeC1.c1,1999,0321:30:00,29 ,0.447067,14.63398,2.304828,3.194188
sgpcmbeC1.c1,1999,0322:30:00,29 ,0.289301, 19.5126,2.436506,3.862579
sgpcmbeC1.c1,1999,0323:30:00,29 ,0.332597, 16.7884, 2.69806,4.178031