datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,03 0:30:00,24 ,       0,1.292556,0.073443,0.276801
sgpcmbeC1.c1,2001,03 1:30:00,26 ,       0,1.609792,0.075259,0.320284
sgpcmbeC1.c1,2001,03 2:30:00,24 ,       0,2.503979, 0.13179,0.520291
sgpcmbeC1.c1,2001,03 3:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 4:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 5:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 6:30:00,31 ,       0, 5.75507,0.695596,1.501819
sgpcmbeC1.c1,2001,03 7:30:00,31 ,0.077676,106.6752,25.67021,34.42082
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 ,       0,190.5916,49.37562,54.06961
sgpcmbeC1.c1,2001,0318:30:00,31 ,       0,26.71634,2.975248,5.723808
sgpcmbeC1.c1,2001,0319:30:00,31 ,       0,1.554487,0.081358,0.323908
sgpcmbeC1.c1,2001,0320:30:00,28 ,       0,1.998951,0.071391,0.377766
sgpcmbeC1.c1,2001,0321:30:00,26 ,       0,1.465844,0.056379,0.287476
sgpcmbeC1.c1,2001,0322:30:00,28 ,       0,1.277861,0.071202,0.272392
sgpcmbeC1.c1,2001,0323:30:00,27 ,       0,0.947611,0.065095,0.235304