datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,       0,936.4093,78.16474,218.5415
sgpcmbeC1.c1,1999,01 1:30:00,28 ,       0,271.3789,39.68192,74.10267
sgpcmbeC1.c1,1999,01 2:30:00,29 ,       0,717.7101,73.52548,157.6342
sgpcmbeC1.c1,1999,01 3:30:00,30 ,       0,1199.259,115.9383,294.9837
sgpcmbeC1.c1,1999,01 4:30:00,29 ,       0, 304.853,45.91367,84.76643
sgpcmbeC1.c1,1999,01 5:30:00,29 ,       0,466.6501,55.39361,113.3897
sgpcmbeC1.c1,1999,01 6:30:00,29 ,       0, 731.593,68.75559,166.8797
sgpcmbeC1.c1,1999,01 7:30:00,31 ,       0,1391.311,137.6488,301.5399
sgpcmbeC1.c1,1999,01 8:30:00,30 ,       0, 1044.84,122.4562,269.4688
sgpcmbeC1.c1,1999,01 9:30:00,29 ,       0,609.4888,78.85245,158.6643
sgpcmbeC1.c1,1999,0110:30:00,28 ,       0,1503.456,106.7898,293.3204
sgpcmbeC1.c1,1999,0111:30:00,29 ,       0,1329.172,100.4578,261.8172
sgpcmbeC1.c1,1999,0112:30:00,28 ,       0,268.2926,40.26506,76.80015
sgpcmbeC1.c1,1999,0113:30:00,27 ,       0,317.3592,42.98402,94.63139
sgpcmbeC1.c1,1999,0114:30:00,26 ,       0,496.8178, 48.9582,115.9977
sgpcmbeC1.c1,1999,0115:30:00,26 ,       0,1150.521,69.80026,227.3169
sgpcmbeC1.c1,1999,0116:30:00,28 ,       0,1192.165,89.67877,247.1343
sgpcmbeC1.c1,1999,0117:30:00,29 ,       0,1833.363,95.71071,342.1425
sgpcmbeC1.c1,1999,0118:30:00,30 ,       0,1254.562,104.1425,281.5713
sgpcmbeC1.c1,1999,0119:30:00,30 ,       0,1334.389,109.1656,298.3415
sgpcmbeC1.c1,1999,0120:30:00,29 ,       0,1243.562,106.1224,294.1786
sgpcmbeC1.c1,1999,0121:30:00,30 ,       0,966.9964,87.52148, 194.503
sgpcmbeC1.c1,1999,0122:30:00,30 ,       0,813.6273,  104.09,228.9223
sgpcmbeC1.c1,1999,0123:30:00,29 ,       0,971.9012,103.4306,248.0664