datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,12 0:30:00,31 ,0.408481,28.72244,3.946957,6.537654
sgpcmbeC1.c1,2006,12 1:30:00,31 ,0.451377,14.11224, 2.67762,3.351951
sgpcmbeC1.c1,2006,12 2:30:00,31 ,0.425417,17.69673,2.966955,4.191802
sgpcmbeC1.c1,2006,12 3:30:00,31 ,0.454141,16.03351, 3.05422,4.260273
sgpcmbeC1.c1,2006,12 4:30:00,31 ,0.358045,26.44691,3.963196,6.363215
sgpcmbeC1.c1,2006,12 5:30:00,31 ,0.379329,17.69758,2.569453,3.664727
sgpcmbeC1.c1,2006,12 6:30:00,31 ,0.367996,19.30077,3.733428,5.074125
sgpcmbeC1.c1,2006,12 7:30:00,31 , 0.45639,31.20118,4.510232,7.846488
sgpcmbeC1.c1,2006,12 8:30:00,31 ,0.378553,20.16868,3.158694,3.743193
sgpcmbeC1.c1,2006,12 9:30:00,31 ,0.357235,20.29889,3.228626,4.746683
sgpcmbeC1.c1,2006,1210:30:00,31 ,0.534713,9.151055,2.607685,2.235412
sgpcmbeC1.c1,2006,1211:30:00,31 ,0.433082,26.13406,3.988045, 5.33904
sgpcmbeC1.c1,2006,1212:30:00,31 , 0.43677,24.67046,3.709742,4.875859
sgpcmbeC1.c1,2006,1213:30:00,31 ,0.397731,18.73635,3.951795,4.621553
sgpcmbeC1.c1,2006,1214:30:00,31 ,0.303811,16.79769,3.654608,4.639426
sgpcmbeC1.c1,2006,1215:30:00,31 ,0.387311,24.44982,3.856163,6.342099
sgpcmbeC1.c1,2006,1216:30:00,31 ,0.322169,17.73509, 2.80617,3.861081
sgpcmbeC1.c1,2006,1217:30:00,31 ,0.337524,27.15982,3.603001,6.202592
sgpcmbeC1.c1,2006,1218:30:00,31 ,0.436842,20.49035,2.318153,3.937327
sgpcmbeC1.c1,2006,1219:30:00,31 ,0.469177,23.71987,3.420926,5.518731
sgpcmbeC1.c1,2006,1220:30:00,31 ,0.344115,18.70541,2.381144,3.881329
sgpcmbeC1.c1,2006,1221:30:00,31 ,0.387218,25.29189,4.400428,6.413715
sgpcmbeC1.c1,2006,1222:30:00,31 ,0.434329,21.25261,  3.8347,4.972955
sgpcmbeC1.c1,2006,1223:30:00,31 ,0.368299,39.94565,3.439152,7.441574