datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1997,12 0:30:00,30 ,       0,0.453216,0.104018,0.139713
twpcmbeC1.c1,1997,12 1:30:00,31 ,       0,0.379776,0.071409,0.118007
twpcmbeC1.c1,1997,12 2:30:00,31 ,       0,0.364844,0.125125,0.147453
twpcmbeC1.c1,1997,12 3:30:00,31 ,       0,0.577253, 0.16054,0.168931
twpcmbeC1.c1,1997,12 4:30:00,31 ,       0,0.942235,0.207063,0.272853
twpcmbeC1.c1,1997,12 5:30:00,31 ,       0, 2.28813,0.972521,0.670437
twpcmbeC1.c1,1997,12 6:30:00,31 ,5.071614,40.81166,19.69634,8.269668
twpcmbeC1.c1,1997,12 7:30:00,31 ,1.923326,54.07956,18.24208,15.02161
twpcmbeC1.c1,1997,12 8:30:00,31 ,1.772137,118.2783,29.24144,28.21745
twpcmbeC1.c1,1997,12 9:30:00,31 ,3.543206,118.9657,40.73165,31.66466
twpcmbeC1.c1,1997,1210:30:00,31 ,4.075939,174.4517,54.39735,41.73941
twpcmbeC1.c1,1997,1211:30:00,31 ,2.781406,160.6662,60.79656, 43.6265
twpcmbeC1.c1,1997,1212:30:00,31 ,3.903506,138.0119,61.81392,40.55134
twpcmbeC1.c1,1997,1213:30:00,31 ,3.017685, 119.933,  56.855,35.77447
twpcmbeC1.c1,1997,1214:30:00,31 ,7.709227,143.3043,53.21824,33.36656
twpcmbeC1.c1,1997,1215:30:00,31 ,7.434203,139.0968,39.91648,31.51281
twpcmbeC1.c1,1997,1216:30:00,31 ,12.08992,92.64996,34.85628,22.22373
twpcmbeC1.c1,1997,1217:30:00,31 ,3.525704, 45.4586,23.36608, 12.1824
twpcmbeC1.c1,1997,1218:30:00,31 ,       0,14.16163,3.739491,3.083589
twpcmbeC1.c1,1997,1219:30:00,29 ,       0,0.555569,0.203624,0.154552
twpcmbeC1.c1,1997,1220:30:00,31 ,       0,0.429649,0.165618,0.151528
twpcmbeC1.c1,1997,1221:30:00,31 ,       0,0.454018, 0.15953,0.175529
twpcmbeC1.c1,1997,1222:30:00,31 ,       0,0.392839,0.106192,0.150518
twpcmbeC1.c1,1997,1223:30:00,30 ,       0,0.450473,  0.0982,0.140336