datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,01 0:30:00,31 ,       0,81.61393,11.14965,20.81891
sgpcmbeC1.c1,1997,01 1:30:00,31 ,       0,83.91698,11.72328,21.14136
sgpcmbeC1.c1,1997,01 2:30:00,31 ,       0,43.55788,9.518073,14.29776
sgpcmbeC1.c1,1997,01 3:30:00,31 ,       0,136.4355,14.57857,28.28749
sgpcmbeC1.c1,1997,01 4:30:00,31 ,       0,69.90292,10.13756,15.25722
sgpcmbeC1.c1,1997,01 5:30:00,31 ,0.507755,74.57729,11.66774,19.25701
sgpcmbeC1.c1,1997,01 6:30:00,31 ,0.222866, 67.6501,9.498652,14.54322
sgpcmbeC1.c1,1997,01 7:30:00,31 ,       0,48.90339,8.842221,10.71856
sgpcmbeC1.c1,1997,01 8:30:00,31 ,       0,98.51347,13.17416,22.75214
sgpcmbeC1.c1,1997,01 9:30:00,31 ,       0,70.72878,9.412142,15.64025
sgpcmbeC1.c1,1997,0110:30:00,31 ,       0, 45.0567,7.730534, 12.1676
sgpcmbeC1.c1,1997,0111:30:00,31 ,       0,48.25939,6.644355,11.41768
sgpcmbeC1.c1,1997,0112:30:00,31 ,       0, 56.7404,7.875376,14.33684
sgpcmbeC1.c1,1997,0113:30:00,31 ,       0,129.1847,  14.875,  30.774
sgpcmbeC1.c1,1997,0114:30:00,31 ,       0,72.01714, 9.57144, 17.1512
sgpcmbeC1.c1,1997,0115:30:00,30 ,0.034134,88.41324, 8.27186,17.18933
sgpcmbeC1.c1,1997,0116:30:00,30 ,0.021276,53.47447,6.822268,10.89733
sgpcmbeC1.c1,1997,0117:30:00,31 ,0.083642,58.50548,6.262094,12.49539
sgpcmbeC1.c1,1997,0118:30:00,31 ,0.074471,81.22721,7.176656,15.60815
sgpcmbeC1.c1,1997,0119:30:00,31 ,       0,56.47302,5.802436, 11.4442
sgpcmbeC1.c1,1997,0120:30:00,31 ,       0,123.8509,9.461336,24.67804
sgpcmbeC1.c1,1997,0121:30:00,31 ,       0,106.3435, 10.7902,24.07962
sgpcmbeC1.c1,1997,0122:30:00,31 ,       0,84.77016,6.119198,15.21948
sgpcmbeC1.c1,1997,0123:30:00,31 ,       0, 59.4462,6.235991,12.22803