datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,03 0:30:00,28 ,0.000616,557.7431,37.28537, 107.651
sgpcmbeC1.c1,2005,03 1:30:00,28 ,       0,161.8061,24.50435,42.50416
sgpcmbeC1.c1,2005,03 2:30:00,28 ,       0,190.6414,28.93269,51.66884
sgpcmbeC1.c1,2005,03 3:30:00,27 ,       0,196.7345,31.26938,52.08346
sgpcmbeC1.c1,2005,03 4:30:00,26 ,       0,1023.463,84.08035,211.6779
sgpcmbeC1.c1,2005,03 5:30:00,24 ,       0, 175.286,25.00688,44.87129
sgpcmbeC1.c1,2005,03 6:30:00,25 ,       0,1173.227, 76.7951,235.5897
sgpcmbeC1.c1,2005,03 7:30:00,27 ,       0,1227.536, 90.5603,251.8564
sgpcmbeC1.c1,2005,03 8:30:00,29 ,       0,1422.521,72.33656,263.6741
sgpcmbeC1.c1,2005,03 9:30:00,30 ,       0,945.4326,69.51398, 202.084
sgpcmbeC1.c1,2005,0310:30:00,30 ,       0,1562.917,74.97806,284.8025
sgpcmbeC1.c1,2005,0311:30:00,29 ,       0,1215.604,  67.577,227.5226
sgpcmbeC1.c1,2005,0312:30:00,29 ,       0,514.6272,38.88114,98.75133
sgpcmbeC1.c1,2005,0313:30:00,29 ,       0,178.2266,27.47898,45.17552
sgpcmbeC1.c1,2005,0314:30:00,29 ,       0,199.9367,21.82294,41.93156
sgpcmbeC1.c1,2005,0315:30:00,29 ,       0,406.8424,29.21276,78.17471
sgpcmbeC1.c1,2005,0316:30:00,29 ,       0, 441.277,34.04346,88.67614
sgpcmbeC1.c1,2005,0317:30:00,28 ,       0,374.7391,31.29977,80.23408
sgpcmbeC1.c1,2005,0318:30:00,28 ,       0,351.0631,31.74007,73.45721
sgpcmbeC1.c1,2005,0319:30:00,29 ,       0,1339.487,98.70785,280.1667
sgpcmbeC1.c1,2005,0320:30:00,29 ,       0,1318.802,102.7592,272.4563
sgpcmbeC1.c1,2005,0321:30:00,29 ,       0,497.8506,56.78563,116.5518
sgpcmbeC1.c1,2005,0322:30:00,29 ,       0,393.3625,40.18235,89.96099
sgpcmbeC1.c1,2005,0323:30:00,29 ,       0,904.3465,52.11164,169.8626