datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,12 0:30:00,31 ,0.267315,4.357213,1.464416,0.999444
sgpcmbeC1.c1,1999,12 1:30:00,31 ,0.183057,3.850677,1.587306,1.108909
sgpcmbeC1.c1,1999,12 2:30:00,31 ,0.283199,4.710346,1.444018,1.005457
sgpcmbeC1.c1,1999,12 3:30:00,31 ,0.326078,5.491367,1.423425,1.307735
sgpcmbeC1.c1,1999,12 4:30:00,31 ,0.301272,7.638917,1.889246,1.715803
sgpcmbeC1.c1,1999,12 5:30:00,31 ,0.510678,3.350243,1.509672,0.656685
sgpcmbeC1.c1,1999,12 6:30:00,31 ,0.462701,4.714804,1.521705,0.831252
sgpcmbeC1.c1,1999,12 7:30:00,31 ,0.480034,4.815911,1.679526,1.050644
sgpcmbeC1.c1,1999,12 8:30:00,31 ,1.041473, 9.90676,3.885887,  2.0232
sgpcmbeC1.c1,1999,12 9:30:00,31 ,1.117581,8.879953,4.629823,2.228156
sgpcmbeC1.c1,1999,1210:30:00,31 ,0.985779,9.081932,4.428269,2.077743
sgpcmbeC1.c1,1999,1211:30:00,31 ,0.969741,9.005841,4.102454,1.724444
sgpcmbeC1.c1,1999,1212:30:00,31 ,1.202588,6.080296,3.025791,1.316979
sgpcmbeC1.c1,1999,1213:30:00,31 ,0.817227,8.046225,2.303174, 1.60595
sgpcmbeC1.c1,1999,1214:30:00,31 ,0.594274,5.948544,2.377707,1.270457
sgpcmbeC1.c1,1999,1215:30:00,31 ,0.260731,4.262091,2.692146,0.934636
sgpcmbeC1.c1,1999,1216:30:00,31 ,0.544862,12.11608,5.808014,2.983393
sgpcmbeC1.c1,1999,1217:30:00,31 ,0.175038,6.238335,2.902362,  1.7039
sgpcmbeC1.c1,1999,1218:30:00,31 ,0.501256,8.201209,2.181371,1.643244
sgpcmbeC1.c1,1999,1219:30:00,31 ,0.281933, 14.1461, 2.18072,2.410554
sgpcmbeC1.c1,1999,1220:30:00,31 ,0.242303,4.604125,1.674373,1.086513
sgpcmbeC1.c1,1999,1221:30:00,31 ,0.310465,4.632697,1.325034,1.017003
sgpcmbeC1.c1,1999,1222:30:00,31 ,0.212991,6.861164,1.668154,1.221895
sgpcmbeC1.c1,1999,1223:30:00,31 ,0.174787,3.998247,1.390663, 0.82259