datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1999,04 0:30:00,30 ,       0,0.020344,0.000678,0.003714
twpcmbeC1.c1,1999,04 1:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,04 2:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,04 3:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,04 4:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,04 5:30:00,30 ,       0,0.346543,0.028815,0.076418
twpcmbeC1.c1,1999,04 6:30:00,30 ,4.967462,54.87013, 24.8818,11.99012
twpcmbeC1.c1,1999,04 7:30:00,30 , 3.57035,69.92349, 23.9567,14.84736
twpcmbeC1.c1,1999,04 8:30:00,30 ,4.490047, 103.055,27.48275,20.50058
twpcmbeC1.c1,1999,04 9:30:00,30 , 10.7655,81.35786, 41.0083,18.86332
twpcmbeC1.c1,1999,0410:30:00,30 ,2.108634,116.8986,46.81754,29.83485
twpcmbeC1.c1,1999,0411:30:00,30 ,1.464115,198.2892,57.67492,43.94883
twpcmbeC1.c1,1999,0412:30:00,30 ,4.767835,99.78404,45.44314, 31.1761
twpcmbeC1.c1,1999,0413:30:00,30 ,1.614534, 120.132,40.07906,34.73389
twpcmbeC1.c1,1999,0414:30:00,30 ,1.173085,101.6424,33.87474,28.13072
twpcmbeC1.c1,1999,0415:30:00,30 ,1.434066,132.4147,34.22037,28.35153
twpcmbeC1.c1,1999,0416:30:00,30 ,4.375673,56.54327,22.76085,12.64332
twpcmbeC1.c1,1999,0417:30:00,30 ,6.785542,57.19908,28.18174,13.43088
twpcmbeC1.c1,1999,0418:30:00,30 ,       0,6.592215, 3.51218,1.738481
twpcmbeC1.c1,1999,0419:30:00,30 ,       0,0.362041,0.012068,0.066099
twpcmbeC1.c1,1999,0420:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,0421:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,0422:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,0423:30:00,30 ,       0,       0,       0,       0