datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,03 0:30:00,30 , 0.00206,1558.473,  96.482,315.3094
sgpcmbeC1.c1,2005,03 1:30:00,30 ,       0,1369.688,68.61177,249.1353
sgpcmbeC1.c1,2005,03 2:30:00,30 ,       0,1103.804,64.20946, 202.577
sgpcmbeC1.c1,2005,03 3:30:00,30 ,       0,1007.859,63.05151,185.1774
sgpcmbeC1.c1,2005,03 4:30:00,30 ,       0,2283.659,186.7467,507.5912
sgpcmbeC1.c1,2005,03 5:30:00,30 ,       0,3398.984,218.9589,689.6463
sgpcmbeC1.c1,2005,03 6:30:00,30 ,       0,1584.703,151.4457,367.5782
sgpcmbeC1.c1,2005,03 7:30:00,30 ,       0, 1736.46,149.6401,385.3671
sgpcmbeC1.c1,2005,03 8:30:00,30 ,       0,3242.666, 200.898,686.9698
sgpcmbeC1.c1,2005,03 9:30:00,31 ,       0, 2443.72,154.7582,486.2608
sgpcmbeC1.c1,2005,0310:30:00,31 ,       0,2990.738,205.2416,704.9817
sgpcmbeC1.c1,2005,0311:30:00,30 ,       0,2785.343,160.3958,548.5925
sgpcmbeC1.c1,2005,0312:30:00,30 ,       0,2462.341,120.0275,452.9228
sgpcmbeC1.c1,2005,0313:30:00,30 ,       0,2319.239,104.9916,420.7346
sgpcmbeC1.c1,2005,0314:30:00,30 ,       0,2817.747,115.1459,512.1035
sgpcmbeC1.c1,2005,0315:30:00,30 ,       0, 2449.63,110.0297,448.5135
sgpcmbeC1.c1,2005,0316:30:00,30 ,       0,2336.281,115.7217,429.4484
sgpcmbeC1.c1,2005,0317:30:00,30 ,       0,2710.128,207.3176,672.8635
sgpcmbeC1.c1,2005,0318:30:00,30 ,       0,2952.786,208.4791, 649.266
sgpcmbeC1.c1,2005,0319:30:00,30 ,       0,2748.422,203.4288,580.0264
sgpcmbeC1.c1,2005,0320:30:00,30 ,       0,2480.262,184.9191, 512.661
sgpcmbeC1.c1,2005,0321:30:00,30 ,       0,2830.139,150.2776,519.2784
sgpcmbeC1.c1,2005,0322:30:00,30 ,       0,2526.536,137.1023,473.7528
sgpcmbeC1.c1,2005,0323:30:00,30 ,       0,1661.833,119.6134,376.0391