datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2004,03 0:30:00,24 ,       0,110.8279,28.89352,28.42376
twpcmbeC2.c1,2004,03 1:30:00,26 , 0.32592,109.8486,34.94396,31.00024
twpcmbeC2.c1,2004,03 2:30:00,25 ,       0, 104.543,32.08861,30.42169
twpcmbeC2.c1,2004,03 3:30:00,26 ,       0,140.3361,37.38635,33.92902
twpcmbeC2.c1,2004,03 4:30:00,24 ,       0,132.1581,28.88144,31.52355
twpcmbeC2.c1,2004,03 5:30:00,26 ,       0,131.4029,28.69403, 33.7444
twpcmbeC2.c1,2004,03 6:30:00,26 ,       0,98.86476,26.24834,28.71451
twpcmbeC2.c1,2004,03 7:30:00,26 ,       0,112.4024,27.09242,28.66157
twpcmbeC2.c1,2004,03 8:30:00,27 ,0.384126,125.0467,28.64235,31.04247
twpcmbeC2.c1,2004,03 9:30:00,26 ,       0,136.3986,25.65138,35.28753
twpcmbeC2.c1,2004,0310:30:00,25 ,       0,75.76453, 26.1524,24.04639
twpcmbeC2.c1,2004,0311:30:00,26 ,       0,103.1275,24.65332,25.57881
twpcmbeC2.c1,2004,0312:30:00,27 ,0.969383,62.17119,23.95885,18.68327
twpcmbeC2.c1,2004,0313:30:00,26 ,0.624142,85.54261,28.57475,26.88442
twpcmbeC2.c1,2004,0314:30:00,26 ,  1.5119,122.4218,  33.275,31.56011
twpcmbeC2.c1,2004,0315:30:00,26 ,       0,81.17622,34.54363,24.16674
twpcmbeC2.c1,2004,0316:30:00,26 ,       0,116.8231,36.62954,33.12153
twpcmbeC2.c1,2004,0317:30:00,27 ,0.189586,206.2594,37.86226,43.40589
twpcmbeC2.c1,2004,0318:30:00,25 ,       0,143.6427,35.84051,37.75446
twpcmbeC2.c1,2004,0319:30:00,25 ,       0,82.02434,31.69361,27.65656
twpcmbeC2.c1,2004,0320:30:00,25 ,       0,69.48253,26.92097,22.78304
twpcmbeC2.c1,2004,0321:30:00,22 ,0.467009,118.0572,34.31974,35.52261
twpcmbeC2.c1,2004,0322:30:00,24 ,       0,105.8316,28.84997, 22.6089
twpcmbeC2.c1,2004,0323:30:00,24 ,0.620495, 115.598,33.21294,35.64065