问题描述
我想计算包含在以下数据帧中的变量 out 的功率谱：
> dput(x)
structure(list(Date = c("03/01/2014","04/01/2014","05/01/2014","06/01/2014","07/01/2014","08/01/2014","09/01/2014","10/01/2014","11/01/2014","12/01/2014","13/01/2014","14/01/2014","15/01/2014","16/01/2014","17/01/2014","18/01/2014","19/01/2014","20/01/2014","21/01/2014","22/01/2014","23/01/2014","24/01/2014","25/01/2014","26/01/2014","27/01/2014","28/01/2014","29/01/2014","30/01/2014","31/01/2014","01/02/2014","02/02/2014","03/02/2014","04/02/2014","05/02/2014","06/02/2014","07/02/2014","08/02/2014","09/02/2014","10/02/2014","11/02/2014","12/02/2014","13/02/2014","14/02/2014","15/02/2014","16/02/2014","17/02/2014","18/02/2014","19/02/2014","20/02/2014","21/02/2014","22/02/2014","23/02/2014","24/02/2014","25/02/2014","26/02/2014","27/02/2014","28/02/2014","01/03/2014","02/03/2014","03/03/2014","04/03/2014","05/03/2014","06/03/2014","07/03/2014","08/03/2014","09/03/2014","10/03/2014","11/03/2014","12/03/2014","13/03/2014","14/03/2014","15/03/2014","16/03/2014","17/03/2014","18/03/2014","19/03/2014","20/03/2014","21/03/2014","22/03/2014","23/03/2014","24/03/2014","25/03/2014","26/03/2014","27/03/2014","28/03/2014","29/03/2014","30/03/2014","31/03/2014","01/04/2014","02/04/2014","03/04/2014","04/04/2014","05/04/2014","06/04/2014","07/04/2014","08/04/2014","09/04/2014","10/04/2014","11/04/2014","12/04/2014"),out = c(60.691,61.14,62.291,62.475,79.221,77.406,81.44,86.835,60.445,48.158,77.72,72.216,70.043,77.557,85.613,58.188,56.051,83.347,81.148,78.216,80.529,78.145,57.101,47.653,74.763,79.788,75.054,79.047,78.875,66.225,59.001,83.036,81.415,83.122,83.06,81.177,59.608,52.073,84.999,84.74,81.018,82.796,78.048,61.137,50.492,78.665,81.877,85.827,86.018,88.042,67.809,57.774,77.519,80.581,83.097,81.466,83.352,67.338,59.567,78.918,77.055,70.849,74.087,69.902,53.799,50.442,70.947,67.846,58.728,60.112,68.539,67.619,63.603,84.157,86.764,92.712,97.284,97.954,87.837,86.366,100.472,97.418,98.939,95.212,89.356,72.816,67.097,89.241,84.726,90.63,96.557,95.27,85.913,83.328,98.35,112.299,117.39,120.777,124.143,117.79)),row.names = c(NA,-100L),class = c("tbl_df","tbl","data.frame"))
例如，我读取的代码 here 处理年或月数据。如何将它们应用到我的数据集？
解决方法
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