datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,01 0:30:00,31 ,       0,4.123059,2.022672,1.353054
sgpcmbeC1.c1,2006,01 1:30:00,31 ,       0,4.202187,1.991151,1.326091
sgpcmbeC1.c1,2006,01 2:30:00,31 ,       0,4.167271,2.080058,1.357422
sgpcmbeC1.c1,2006,01 3:30:00,31 ,       0,4.131663,2.041858, 1.38955
sgpcmbeC1.c1,2006,01 4:30:00,31 ,       0,3.781201,2.080793,1.266768
sgpcmbeC1.c1,2006,01 5:30:00,31 ,       0,4.111372,1.924212,1.207981
sgpcmbeC1.c1,2006,01 6:30:00,31 ,       0,4.187105,1.833433,1.281839
sgpcmbeC1.c1,2006,01 7:30:00,31 ,0.446515,10.08155,4.814431,2.619715
sgpcmbeC1.c1,2006,01 8:30:00,31 , 17.6432,139.7729,88.67943,32.81765
sgpcmbeC1.c1,2006,01 9:30:00,31 ,40.28267,326.5076,229.3838, 77.4307
sgpcmbeC1.c1,2006,0110:30:00,31 ,80.28062,484.5153,360.6716,107.7468
sgpcmbeC1.c1,2006,0111:30:00,31 , 131.057,588.6907,455.5214,114.4002
sgpcmbeC1.c1,2006,0112:30:00,31 ,96.41483,636.2258,498.3565,132.3859
sgpcmbeC1.c1,2006,0113:30:00,31 ,133.7742,618.1823,482.3384,123.5488
sgpcmbeC1.c1,2006,0114:30:00,31 ,95.35011,528.6912,396.4746,106.2213
sgpcmbeC1.c1,2006,0115:30:00,31 , 69.0456,392.9643, 278.211, 90.2994
sgpcmbeC1.c1,2006,0116:30:00,31 ,33.83049,218.3047,136.8352,51.16008
sgpcmbeC1.c1,2006,0117:30:00,31 ,1.890954,43.73414,18.99433,10.79359
sgpcmbeC1.c1,2006,0118:30:00,29 ,       0,4.937122,2.360684,1.576272
sgpcmbeC1.c1,2006,0119:30:00,31 ,       0,4.737226,1.970135,1.447825
sgpcmbeC1.c1,2006,0120:30:00,30 ,       0,4.622238,2.081833,1.437539
sgpcmbeC1.c1,2006,0121:30:00,30 ,       0,4.533185,2.226143,1.537352
sgpcmbeC1.c1,2006,0122:30:00,30 ,       0,4.448698,2.019232,1.472938
sgpcmbeC1.c1,2006,0123:30:00,30 ,       0,4.636774,2.030198,1.421038