datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,04 0:30:00,30 ,       0, 0.30637,0.016244,0.059001
sgpcmbeC1.c1,1997,04 1:30:00,30 ,       0,0.210371,0.009385,0.039888
sgpcmbeC1.c1,1997,04 2:30:00,30 ,       0,0.242522,0.022746,0.054915
sgpcmbeC1.c1,1997,04 3:30:00,30 ,       0,0.063158,0.004379,0.014129
sgpcmbeC1.c1,1997,04 4:30:00,30 ,       0,0.016135,0.000538,0.002946
sgpcmbeC1.c1,1997,04 5:30:00,30 ,       0,3.097656,0.441767, 0.82022
sgpcmbeC1.c1,1997,04 6:30:00,30 ,0.285847,24.18163,8.286552,6.575913
sgpcmbeC1.c1,1997,04 7:30:00,30 ,0.379046,30.47097,11.95984,8.104357
sgpcmbeC1.c1,1997,04 8:30:00,30 ,1.079284,43.00327, 14.8662,10.76527
sgpcmbeC1.c1,1997,04 9:30:00,30 ,1.930702,41.64598,14.66685,11.00396
sgpcmbeC1.c1,1997,0410:30:00,30 ,1.304649,38.28628,13.48244,10.57325
sgpcmbeC1.c1,1997,0411:30:00,30 ,2.515926,55.95869,17.62637,16.83334
sgpcmbeC1.c1,1997,0412:30:00,30 , 0.83633,73.24915,17.49881,18.92982
sgpcmbeC1.c1,1997,0413:30:00,30 ,1.786773,70.59093,20.29742,18.44124
sgpcmbeC1.c1,1997,0414:30:00,30 ,1.831955, 58.9491,20.13154,16.04287
sgpcmbeC1.c1,1997,0415:30:00,30 ,3.006143,53.07691,17.48508,13.72663
sgpcmbeC1.c1,1997,0416:30:00,30 ,1.608384,45.32496,14.50664,11.90989
sgpcmbeC1.c1,1997,0417:30:00,30 ,1.377889,23.70558,11.26869,7.251318
sgpcmbeC1.c1,1997,0418:30:00,30 , 0.38239,19.30201,9.442682,6.628574
sgpcmbeC1.c1,1997,0419:30:00,30 ,       0,1.716521,0.182301,0.400086
sgpcmbeC1.c1,1997,0420:30:00,30 ,       0,0.317802,0.015203,0.061418
sgpcmbeC1.c1,1997,0421:30:00,30 ,       0,0.345199,0.012898,0.063222
sgpcmbeC1.c1,1997,0422:30:00,30 ,       0,0.266747,0.011257,0.049619
sgpcmbeC1.c1,1997,0423:30:00,30 ,       0, 0.25891,0.013102,0.049576