datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,11 0:30:00,28 ,       0,1.146103,0.040932,0.216593
sgpcmbeC1.c1,1998,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 2:30:00,28 ,       0,0.568481,0.020303,0.107433
sgpcmbeC1.c1,1998,11 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 4:30:00,29 ,       0,0.454907,0.015686,0.084474
sgpcmbeC1.c1,1998,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 6:30:00,29 ,       0,1.237808,0.127558,0.332475
sgpcmbeC1.c1,1998,11 7:30:00,29 ,3.463164,48.44738,21.63995,12.61294
sgpcmbeC1.c1,1998,11 8:30:00,29 ,5.636947,69.85724,39.52629,18.26184
sgpcmbeC1.c1,1998,11 9:30:00,29 ,8.631864,88.02181,38.47398,18.13604
sgpcmbeC1.c1,1998,1110:30:00,29 ,8.113964, 95.6132,34.62991,19.30016
sgpcmbeC1.c1,1998,1111:30:00,29 ,8.803974,53.80465,25.33781,14.07848
sgpcmbeC1.c1,1998,1112:30:00,29 ,3.237258,119.8007,29.58646,33.44272
sgpcmbeC1.c1,1998,1113:30:00,29 ,6.313729, 116.902,32.21909,24.61003
sgpcmbeC1.c1,1998,1114:30:00,29 ,9.021805,136.9877,48.32897, 29.4066
sgpcmbeC1.c1,1998,1115:30:00,29 ,7.761956, 90.2413,43.17529,22.37211
sgpcmbeC1.c1,1998,1116:30:00,29 ,3.215882,56.93528,34.62924,18.47893
sgpcmbeC1.c1,1998,1117:30:00,30 ,       0,13.77948,5.806127,3.781961
sgpcmbeC1.c1,1998,1118:30:00,29 ,       0,2.053237,0.103378,0.413969
sgpcmbeC1.c1,1998,1119:30:00,29 ,       0,2.244773,0.091324,0.420886
sgpcmbeC1.c1,1998,1120:30:00,29 ,       0,1.203586,0.057261,0.236217
sgpcmbeC1.c1,1998,1121:30:00,29 ,       0,0.594217,0.040269,0.150603
sgpcmbeC1.c1,1998,1122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1123:30:00,28 ,       0,1.808551,0.078434,0.346882