datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,03 0:30:00,24 ,       0,2.919778, 1.46599,0.883448
sgpcmbeC1.c1,2001,03 1:30:00,26 ,       0,2.952371,1.327037,0.952378
sgpcmbeC1.c1,2001,03 2:30:00,24 ,       0,3.133202,1.427487,1.034476
sgpcmbeC1.c1,2001,03 3:30:00,23 ,       0,2.626813,1.264462,0.934166
sgpcmbeC1.c1,2001,03 4:30:00,21 ,       0,2.586337,1.019891,0.909595
sgpcmbeC1.c1,2001,03 5:30:00,24 ,       0,2.601146,1.109656,0.936099
sgpcmbeC1.c1,2001,03 6:30:00,31 ,       0, 5.97785,1.222515,1.486495
sgpcmbeC1.c1,2001,03 7:30:00,31 ,0.264504,106.6752,25.71501,34.38685
sgpcmbeC1.c1,2001,03 8:30:00,31 ,0.153191,305.8766,93.63568,105.9231
sgpcmbeC1.c1,2001,03 9:30:00,31 ,0.015747,489.3087,146.4774,182.1743
sgpcmbeC1.c1,2001,0310:30:00,31 ,0.465393,635.7768,223.0363,240.6491
sgpcmbeC1.c1,2001,0311:30:00,31 ,0.562073,785.6862,299.0484,294.1118
sgpcmbeC1.c1,2001,0312:30:00,31 ,0.299988,820.6726,299.8924,293.2286
sgpcmbeC1.c1,2001,0313:30:00,31 , 0.28569,797.6292,292.0771,286.2499
sgpcmbeC1.c1,2001,0314:30:00,31 ,       0,707.3665,248.4102,246.7135
sgpcmbeC1.c1,2001,0315:30:00,31 ,       0,575.4662,206.6748,200.7039
sgpcmbeC1.c1,2001,0316:30:00,31 ,       0,393.6174,131.6123,126.9761
sgpcmbeC1.c1,2001,0317:30:00,31 ,       0,190.5916,49.38127,54.06428
sgpcmbeC1.c1,2001,0318:30:00,31 ,0.131866,26.89445,3.396394,5.693296
sgpcmbeC1.c1,2001,0319:30:00,31 ,       0,3.033464,1.037539,0.967984
sgpcmbeC1.c1,2001,0320:30:00,28 ,       0,3.039447,1.123215, 0.86713
sgpcmbeC1.c1,2001,0321:30:00,26 ,       0,2.913961,1.248478,0.810947
sgpcmbeC1.c1,2001,0322:30:00,28 ,       0,2.932387, 1.40741,0.850654
sgpcmbeC1.c1,2001,0323:30:00,27 ,       0,2.961318,1.421334,0.851557