我做了一个简单的时间序列,我给sin函数添加了一点噪音,并尝试使用R中的"stl"和"decompose"函数对其进行分解,而我的序列肯定有超过2个周期并且是周期性的,R两个函数给我以下错误:
x
[1] 1.4537365796 2.7185844368 2.8394728999 3.8926989923 4.3405508086 5.1959080871
[7] 5.6602505790 5.4829985648 5.6357660330 4.6084976233 4.6617322922 4.0286486832
[13] 3.3641752333 1.7408063182 0.8815147612 0.2895139342 -0.5402768515 -1.5612641107
[19] -2.1584502547 -2.9878043526 -3.5545638149 -4.0530074199 -4.0748538612 -4.7581704662
[25] -4.6555349052 -4.0726206240 -3.1646413472 -2.6934453823 -2.2364605277 -1.2643569882
[31] -0.1202011946 1.1136371449 2.2504199271 3.0313528996 3.5384449109 4.5176211013
[37] 5.4013172839 5.4252837451 5.4768196692 5.8979709077 5.6698285659 4.5133489450
[43] 4.2702602998 3.5180837069 2.2652913344 1.1975595698 0.5412697849 -0.5966162032
[49] -1.0827728340 -1.8488242277 -3.4118061838 -3.9009752140 -3.9102671954 -4.3486102172
[55] -4.7481017993 -4.0097598695 -3.9078554267 -3.8070416888 -2.5968567322 -2.2567568949
[61] -1.1423907008 0.0002492447 0.4338279080 1.2431986797 2.3216397323 3.3235925116
[67] …