datastream, year, month, tod,n, min, max, mean, std twpcmbeC1.c1,1998,12 0:30:00,31 ,439.5967,460.6015,447.6656,5.504599 twpcmbeC1.c1,1998,12 1:30:00,31 ,438.7445, 459.769,447.3639,5.524812 twpcmbeC1.c1,1998,12 2:30:00,31 ,437.4002,459.0247,446.8891,6.059114 twpcmbeC1.c1,1998,12 3:30:00,31 ,435.3687,459.5227,446.2259,6.062603 twpcmbeC1.c1,1998,12 4:30:00,31 , 434.978,457.8989,445.3708, 6.07407 twpcmbeC1.c1,1998,12 5:30:00,31 ,434.1982,459.4536, 444.653,6.626437 twpcmbeC1.c1,1998,12 6:30:00,31 ,442.5006,462.5083,450.5731,5.336088 twpcmbeC1.c1,1998,12 7:30:00,31 , 449.829,480.6587,467.4131,8.756491 twpcmbeC1.c1,1998,12 8:30:00,31 ,446.8214,503.3223,483.2891,15.81154 twpcmbeC1.c1,1998,12 9:30:00,31 ,444.4187, 526.051,493.6224,20.92593 twpcmbeC1.c1,1998,1210:30:00,31 ,443.0666,529.3737,495.5205, 23.7763 twpcmbeC1.c1,1998,1211:30:00,31 ,445.0128,538.6808,504.2524,27.76053 twpcmbeC1.c1,1998,1212:30:00,31 ,447.6241,544.1293,501.7225,31.53243 twpcmbeC1.c1,1998,1213:30:00,31 ,450.1216,539.4213, 495.476, 30.7324 twpcmbeC1.c1,1998,1214:30:00,31 ,447.9749, 533.851,490.2476,26.21091 twpcmbeC1.c1,1998,1215:30:00,31 ,446.8661,521.5085,484.7256,22.63609 twpcmbeC1.c1,1998,1216:30:00,31 ,447.3335, 504.524,476.9351,17.99644 twpcmbeC1.c1,1998,1217:30:00,31 ,444.2396,486.2326,464.5825,10.76008 twpcmbeC1.c1,1998,1218:30:00,31 ,444.0669,464.2882,454.7008,4.965982 twpcmbeC1.c1,1998,1219:30:00,31 ,445.1921,462.6746,451.7277,4.525158 twpcmbeC1.c1,1998,1220:30:00,31 ,443.1541,458.0599,450.2668,4.225813 twpcmbeC1.c1,1998,1221:30:00,31 ,440.3444,459.0736,449.6144,4.616453 twpcmbeC1.c1,1998,1222:30:00,31 ,440.1304,459.4174,448.9925,4.990089 twpcmbeC1.c1,1998,1223:30:00,31 ,437.6845,460.7625,447.9465,5.283607