datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,12 0:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 1:30:00,12 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 2:30:00,12 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 3:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 4:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 5:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 6:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 7:30:00,30 ,0.061023,4.512175, 1.72442,1.198228
sgpcmbeC1.c1,2000,12 8:30:00,30 ,1.676785,57.27422,27.21438,14.48582
sgpcmbeC1.c1,2000,12 9:30:00,30 ,5.795641,153.2979,69.37857, 37.4371
sgpcmbeC1.c1,2000,1210:30:00,30 ,6.058731,237.6001,104.3375,56.65445
sgpcmbeC1.c1,2000,1211:30:00,30 ,6.808488,313.2998,130.2394,76.92957
sgpcmbeC1.c1,2000,1212:30:00,30 ,5.431691, 388.347,134.7091,89.28346
sgpcmbeC1.c1,2000,1213:30:00,29 , 4.29995,362.9242,125.1559,83.53759
sgpcmbeC1.c1,2000,1214:30:00,28 ,       0, 283.413,99.60514,65.11294
sgpcmbeC1.c1,2000,1215:30:00,28 ,4.414409,133.0478,61.33603,35.51917
sgpcmbeC1.c1,2000,1216:30:00,29 ,       0,75.23101,24.19036,17.25861
sgpcmbeC1.c1,2000,1217:30:00,29 ,       0,7.959253,1.262042,1.857403
sgpcmbeC1.c1,2000,1218:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1219:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1220:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1221:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1222:30:00,9 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1223:30:00,13 ,       0,       0,       0,       0