datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,01 0:30:00,27 ,       0,67.01392,5.429332,13.60089
sgpcmbeC1.c1,2002,01 1:30:00,25 ,       0,58.53668, 4.97168,12.20307
sgpcmbeC1.c1,2002,01 2:30:00,25 ,       0,66.49605,6.955676,15.87726
sgpcmbeC1.c1,2002,01 3:30:00,26 ,       0,108.4197,13.81586, 27.7969
sgpcmbeC1.c1,2002,01 4:30:00,26 ,       0,55.14132,8.904317,16.97328
sgpcmbeC1.c1,2002,01 5:30:00,26 ,       0,40.16219,5.818545,9.891693
sgpcmbeC1.c1,2002,01 6:30:00,26 ,       0,39.72022,5.449819,10.28583
sgpcmbeC1.c1,2002,01 7:30:00,25 ,       0,31.03214,4.627216,8.089476
sgpcmbeC1.c1,2002,01 8:30:00,25 ,       0,74.65608,5.382569,14.92071
sgpcmbeC1.c1,2002,01 9:30:00,26 ,       0,79.84525,5.751342, 16.0228
sgpcmbeC1.c1,2002,0110:30:00,28 ,       0,115.8061, 12.3817,27.42785
sgpcmbeC1.c1,2002,0111:30:00,28 ,       0,59.11071, 7.26127,14.03826
sgpcmbeC1.c1,2002,0112:30:00,28 ,       0,230.3176,15.10119,44.70803
sgpcmbeC1.c1,2002,0113:30:00,28 ,       0,379.0517,19.65356,71.95412
sgpcmbeC1.c1,2002,0114:30:00,28 ,       0, 511.556,22.94472,96.45089
sgpcmbeC1.c1,2002,0115:30:00,27 ,       0,580.1968,24.76574,111.2874
sgpcmbeC1.c1,2002,0116:30:00,27 ,       0,1032.974,41.19958,198.2543
sgpcmbeC1.c1,2002,0117:30:00,27 ,0.005057,1483.443,58.79196,284.7402
sgpcmbeC1.c1,2002,0118:30:00,28 ,       0,538.2244,24.94643,100.9592
sgpcmbeC1.c1,2002,0119:30:00,28 ,       0,483.6892, 31.6359,101.4949
sgpcmbeC1.c1,2002,0120:30:00,28 ,       0,543.8006,42.07923,139.7686
sgpcmbeC1.c1,2002,0121:30:00,28 ,       0,438.2226,28.20419,92.30305
sgpcmbeC1.c1,2002,0122:30:00,27 ,       0,881.2397,37.44461,168.9643
sgpcmbeC1.c1,2002,0123:30:00,26 ,       0,40.67472,4.307849,9.546817