Hello I have dataframe 101 2008-07 0.2898966 102 2008-08 0.3101667 103 2008-09 0.3730476 104 2008-10 0.2717037 105 2008-11 0.1344286 106 2008-12 0.1375000 107 2009-01 0.1781000 108 2009-02 0.2146667 109 2009-03 0.2808235 110 2009-04 0.4326250 111 2009-05 0.3420741 112 2009-06 0.2675238 113 2009-07 0.2478667 114 2009-08 0.3147000 115 2009-09 0.3437826 116 2009-10 0.2057391 117 2009-11 0.1824737 118 2009-12 0.1520714 119 2010-01 0.1485455 120 2010-02 0.1755556 121 2010-03 0.3072000 122 2010-04 0.3294445 123 2010-05 0.3278125 124 2010-06 0.2865000 125 2010-07 0.3170333 126 2010-08 0.2052143 127 2010-09 0.1837368 128 2010-10 0.1652778 129 2010-11 0.1292500 130 2010-12 0.1366250 131 2011-01 0.1909231 132 2011-02 0.1841177 133 2011-03 0.2897222 134 2011-04 0.3084211 135 2011-05 0.3349600 136 2011-06 0.3157917 137 2011-07 0.2755652 138 2011-08 0.2019355 139 2011-09 0.3325556 140 2011-10 0.1724348 141 2011-11 0.1935200 142 2011-12 0.1388000 143 2012-01 0.1484500 144 2012-02 0.2043333 145 2012-03 NaN 146 2012-04 NaN 147 2012-05 NaN 148 2012-06 NaN 149 2012-07 NaN 150 2012-08 NaN 151 2012-09 NaN then I use function df.ts<- ts(df[,2],start=c(2004,10),freq=12) and try to use stl(log(df.ts),s.window="periodic") But I have an error related with missed values. How can omit missing values? Regards Aleksander
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