datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,29 ,0.207956,3.914205,1.237113,0.990113
sgpcmbeC1.c1,2007,12 1:30:00,30 ,0.182248,  3.8016,1.011852,0.757163
sgpcmbeC1.c1,2007,12 2:30:00,30 ,0.116451,4.439982,1.466596,1.255111
sgpcmbeC1.c1,2007,12 3:30:00,30 ,0.145946,3.531038,1.116162,0.841403
sgpcmbeC1.c1,2007,12 4:30:00,30 ,0.187056,3.527591,1.145491,0.933429
sgpcmbeC1.c1,2007,12 5:30:00,30 ,0.115778,10.26316,1.614518,2.008964
sgpcmbeC1.c1,2007,12 6:30:00,30 ,0.147885,3.773655,1.327789,0.972854
sgpcmbeC1.c1,2007,12 7:30:00,30 ,0.185899,4.127249,1.530018,1.181477
sgpcmbeC1.c1,2007,12 8:30:00,30 ,0.235068,7.829674,2.751689,2.594794
sgpcmbeC1.c1,2007,12 9:30:00,30 ,0.209174,29.36179,3.596059,5.392952
sgpcmbeC1.c1,2007,1210:30:00,29 ,0.211705,20.18076,2.979982,3.872969
sgpcmbeC1.c1,2007,1211:30:00,28 ,0.184004, 7.65027,2.517171,2.075517
sgpcmbeC1.c1,2007,1212:30:00,30 ,0.181154,8.653762, 1.95774,1.769268
sgpcmbeC1.c1,2007,1213:30:00,30 ,0.172971,8.011497,1.728376,1.557813
sgpcmbeC1.c1,2007,1214:30:00,30 ,0.142328,8.277512,1.643591,1.862317
sgpcmbeC1.c1,2007,1215:30:00,30 ,0.112141,4.777365,1.708745,1.216645
sgpcmbeC1.c1,2007,1216:30:00,30 ,0.132227,13.45109,3.542099,  3.4952
sgpcmbeC1.c1,2007,1217:30:00,30 ,0.135997,9.112754,2.485305,2.238698
sgpcmbeC1.c1,2007,1218:30:00,28 ,0.152312,6.089007,1.591174,1.737569
sgpcmbeC1.c1,2007,1219:30:00,29 ,0.144257,5.697588,1.644951,1.579895
sgpcmbeC1.c1,2007,1220:30:00,29 ,0.166919,18.53873,1.949785,3.315623
sgpcmbeC1.c1,2007,1221:30:00,29 ,0.166605,4.553174,1.491551,1.147052
sgpcmbeC1.c1,2007,1222:30:00,29 ,0.189831,2.793415,1.247337,0.805096
sgpcmbeC1.c1,2007,1223:30:00,29 ,0.127431,4.727892,1.586647,1.381856