datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,01 0:30:00,27 ,       0,3.500636,1.764049,1.250194
sgpcmbeC1.c1,2006,01 1:30:00,26 ,       0,3.488928,1.674392,1.200988
sgpcmbeC1.c1,2006,01 2:30:00,24 ,       0,3.330045,1.588504,1.127608
sgpcmbeC1.c1,2006,01 3:30:00,24 ,       0,3.793694,1.557753,1.185025
sgpcmbeC1.c1,2006,01 4:30:00,26 ,       0,3.700172, 1.78387,1.163142
sgpcmbeC1.c1,2006,01 5:30:00,29 ,       0,3.657558,1.805525,1.149688
sgpcmbeC1.c1,2006,01 6:30:00,27 ,       0,3.226974,1.535799,1.076699
sgpcmbeC1.c1,2006,01 7:30:00,31 ,0.187961,5.388658,1.634725,1.316683
sgpcmbeC1.c1,2006,01 8:30:00,31 ,0.018171,108.6669,45.26504,36.78307
sgpcmbeC1.c1,2006,01 9:30:00,31 ,0.088501,281.6134,143.7363,94.05464
sgpcmbeC1.c1,2006,0110:30:00,31 ,0.110794,432.2196,240.0575,147.7484
sgpcmbeC1.c1,2006,0111:30:00,31 ,0.179153,530.5679, 313.122, 168.274
sgpcmbeC1.c1,2006,0112:30:00,31 ,0.042534,574.5625,357.2434,184.2262
sgpcmbeC1.c1,2006,0113:30:00,31 ,0.293915,558.6537,349.1674, 169.599
sgpcmbeC1.c1,2006,0114:30:00,31 ,0.184166,469.5424,273.2578,152.3377
sgpcmbeC1.c1,2006,0115:30:00,31 ,       0, 336.913,187.2675,113.3794
sgpcmbeC1.c1,2006,0116:30:00,31 ,       0,176.2112, 81.5841, 55.8902
sgpcmbeC1.c1,2006,0117:30:00,31 ,0.086718,28.35032,7.480737,7.761245
sgpcmbeC1.c1,2006,0118:30:00,18 ,       0,3.702184,1.435968,1.265341
sgpcmbeC1.c1,2006,0119:30:00,23 ,       0,3.589453,1.380989,1.174021
sgpcmbeC1.c1,2006,0120:30:00,24 ,       0,3.484692,1.668187,1.287109
sgpcmbeC1.c1,2006,0121:30:00,24 ,       0,4.270857,1.817363,1.432853
sgpcmbeC1.c1,2006,0122:30:00,25 ,       0,3.374761,1.645866,1.310053
sgpcmbeC1.c1,2006,0123:30:00,23 ,       0,3.424011,1.539072,1.230114