datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1998,12 0:30:00,31 ,       0,0.313245, 0.02523,0.075128
twpcmbeC1.c1,1998,12 1:30:00,31 ,       0,0.093686,0.008241, 0.01994
twpcmbeC1.c1,1998,12 2:30:00,31 ,       0,0.061655, 0.00687,0.014473
twpcmbeC1.c1,1998,12 3:30:00,31 ,       0,0.055144,0.003603,0.010931
twpcmbeC1.c1,1998,12 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,1998,12 5:30:00,31 ,       0,2.790788, 0.61843,0.654453
twpcmbeC1.c1,1998,12 6:30:00,31 ,6.339574,84.81971,22.62873,14.04106
twpcmbeC1.c1,1998,12 7:30:00,31 ,4.711616,56.67968,24.09852,15.86206
twpcmbeC1.c1,1998,12 8:30:00,31 ,3.235395,104.5412,32.13989,26.98922
twpcmbeC1.c1,1998,12 9:30:00,31 ,1.684902,140.3662,51.68289,30.62476
twpcmbeC1.c1,1998,1210:30:00,31 ,1.220215,175.4523,  66.106,41.24529
twpcmbeC1.c1,1998,1211:30:00,31 ,3.032592,162.8561,57.32676,35.50841
twpcmbeC1.c1,1998,1212:30:00,31 ,2.593398,180.5343, 53.8478,39.77906
twpcmbeC1.c1,1998,1213:30:00,31 ,1.793228, 156.716,49.43392,41.76577
twpcmbeC1.c1,1998,1214:30:00,31 ,2.642483,131.7704, 41.1102,34.76526
twpcmbeC1.c1,1998,1215:30:00,31 ,2.362683,95.61973,32.77645,26.19218
twpcmbeC1.c1,1998,1216:30:00,31 ,1.846655,79.19703,25.24419,21.70954
twpcmbeC1.c1,1998,1217:30:00,31 ,0.658597,49.52884,19.09612,11.57528
twpcmbeC1.c1,1998,1218:30:00,31 ,       0,9.408361,3.514665,2.472009
twpcmbeC1.c1,1998,1219:30:00,31 ,       0,0.195219,0.006297,0.035062
twpcmbeC1.c1,1998,1220:30:00,31 ,       0,0.411998,0.013884,0.073961
twpcmbeC1.c1,1998,1221:30:00,31 ,       0,0.434179,0.014576, 0.07794
twpcmbeC1.c1,1998,1222:30:00,31 ,       0,0.381437,0.030092,0.086669
twpcmbeC1.c1,1998,1223:30:00,31 ,       0,0.291604,0.024964,0.073166