datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,12 0:30:00,25 ,       0,3.187276, 0.70738,1.082805
sgpcmbeC1.c1,2005,12 1:30:00,22 ,       0,2.881844,0.440494, 0.94942
sgpcmbeC1.c1,2005,12 2:30:00,23 ,       0,2.868045,0.564266,1.006576
sgpcmbeC1.c1,2005,12 3:30:00,26 ,       0,2.942374,0.669059,0.983995
sgpcmbeC1.c1,2005,12 4:30:00,27 ,       0,2.528018,0.300613,0.602071
sgpcmbeC1.c1,2005,12 5:30:00,28 ,       0,2.447505,0.354572,0.718431
sgpcmbeC1.c1,2005,12 6:30:00,29 ,       0,3.106654,0.452768,0.952525
sgpcmbeC1.c1,2005,12 7:30:00,31 ,       0,10.22533, 1.95204,2.522684
sgpcmbeC1.c1,2005,12 8:30:00,31 ,0.059586,122.8435,51.37683,40.59623
sgpcmbeC1.c1,2005,12 9:30:00,31 , 0.21452,275.9336,131.8389,104.7563
sgpcmbeC1.c1,2005,1210:30:00,31 , 0.49884,401.1808,199.3081,163.6377
sgpcmbeC1.c1,2005,1211:30:00,30 ,0.060623,476.7178,257.2259,200.8908
sgpcmbeC1.c1,2005,1212:30:00,31 ,       0,491.2376,272.7631,201.3278
sgpcmbeC1.c1,2005,1213:30:00,31 ,0.004646,454.6302,263.6549,178.2636
sgpcmbeC1.c1,2005,1214:30:00,31 ,       0, 373.394,211.7893,154.6981
sgpcmbeC1.c1,2005,1215:30:00,31 ,       0,245.9861,124.1427,98.06933
sgpcmbeC1.c1,2005,1216:30:00,31 ,       0,94.72323,37.67709,33.01579
sgpcmbeC1.c1,2005,1217:30:00,31 ,       0,3.842373,1.222175,1.287584
sgpcmbeC1.c1,2005,1218:30:00,22 ,       0,2.746609,0.488785, 0.88774
sgpcmbeC1.c1,2005,1219:30:00,23 ,       0,3.061055,0.524364,0.972154
sgpcmbeC1.c1,2005,1220:30:00,23 ,       0,3.077707,0.742132,1.181371
sgpcmbeC1.c1,2005,1221:30:00,22 ,       0,2.944121,0.489297,0.967326
sgpcmbeC1.c1,2005,1222:30:00,22 ,       0,2.661678,0.637518,0.814862
sgpcmbeC1.c1,2005,1223:30:00,24 ,       0,3.183076,0.708732,1.053737