我导入的数据包含 7 个变量:Y
and X1
, X2
, X3
, X4
, X5
, X6
. 我尝试应用该rollapply
函数,zoo
以便在具有 262 obs 窗口的样本内运行滚动回归。(一年中的工作日)。
date Y X1 X2
1 10/1/07 -0.0080321720 4.690734e-03 3.333770e-03
2 10/2/07 0.0000000000 -2.818413e-03 5.418223e-03
3 10/3/07 0.0023158650 -4.178744e-03 -3.821100e-04
4 10/4/07 -0.0057491710 -5.071030e-03 -8.321550e-04
5 10/5/07 0.0073570500 3.065045e-03 5.179574e-03
6 10/8/07 0.0127708010 -7.278513e-03 1.145395e-03
7 10/9/07 0.0032661980 9.692267e-03 6.514035e-03
8 10/10/07 0.0013824430 1.161780e-04 2.676416e-03
9 10/11/07 0.0026607550 1.113179e-02 8.825719e-03
10 10/12/07 -0.0046362600 -2.453561e-03 -6.584070e-03
11 10/15/07 -0.0023757680 -7.829081e-03 -3.070540e-03
12 10/16/07 -0.0128673660 -4.619378e-03 -8.972126e-03
13 10/17/07 0.0016049760 1.276695e-03 5.349316e-03
14 10/18/07 -0.0044198970 -9.018499e-03 -1.215895e-02
15 10/19/07 -0.0011080330 -5.328661e-03 -7.131916e-03
16 10/22/07 -0.0024217970 -2.019539e-02 -2.021072e-02
17 10/23/07 0.0031270520 1.668604e-02 2.236130e-02
18 10/24/07 -0.0040367400 -1.061433e-02 -5.735703e-03
19 10/25/07 0.0001011170 1.346312e-02 1.036109e-02
20 10/26/07 0.0003032910 3.766526e-03 2.903628e-03
21 10/29/07 0.0004042450 1.416406e-02 2.527754e-03
22 10/30/07 -0.0012132240 -1.387166e-03 -8.202236e-03
23 10/31/07 0.0057497510 9.593904e-03 1.433401e-02
24 11/1/07 -0.0032238590 -1.648975e-02 -1.029199e-02
25 11/2/07 -0.0031330560 -7.737784e-03 -7.559498e-03
26 11/5/07 -0.0001012300 -7.877763e-03 -8.500554e-03
27 11/6/07 -0.0004050220 7.407770e-03 2.536320e-03
28 11/7/07 -0.0031444970 -5.904219e-03 -8.026064e-03
29 11/8/07 -0.0045822590 -3.712574e-03 -6.395584e-03
30 11/9/07 0.0016316540 -1.432552e-02 -1.741458e-02
31 11/12/07 -0.0019378860 -3.926583e-03 -4.543370e-03
32 11/13/07 0.0011223920 -1.952799e-03 -2.622112e-03
33 11/14/07 0.0008154940 8.687550e-06 1.085682e-03
34 11/15/07 0.0015272620 -1.549745e-02 -1.556172e-02
35 11/16/07 -0.0001017450 -5.578556e-03 -1.432244e-02
36 11/19/07 0.0014234880 -2.206707e-02 -3.537936e-02
37 11/20/07 -0.0010165700 1.643937e-02 5.140822e-03
38 11/21/07 -0.0008140010 -1.715961e-02 -2.756704e-02
39 11/22/07 -0.0008146640 -2.108098e-03 7.455698e-03
40 11/23/07 0.0008146640 1.266776e-02 1.615338e-02
41 11/26/07 0.0008140010 5.539814e-03 2.854080e-03
42 11/27/07 0.0006100660 -8.561106e-03 -9.720505e-03
43 11/28/07 -0.0015258640 3.392103e-02 2.132374e-02
44 11/29/07 -0.0006109980 6.109848e-03 1.045556e-02
45 11/30/07 0.0004073730 9.214342e-03 1.133690e-02
46 12/3/07 -0.0002036660 -7.006415e-03 -6.079820e-04
47 12/4/07 0.0002036660 -1.187605e-02 -2.554853e-02
48 12/5/07 0.0007125040 1.362121e-02 9.525618e-03
49 12/6/07 -0.0034655010 7.917348e-03 5.252105e-03
50 12/7/07 0.0018361730 -1.026832e-02 1.216898e-02
51 12/10/07 0.0013240310 3.347302e-03 1.143687e-02
52 12/11/07 0.0005087760 -3.433720e-03 2.373558e-03
53 12/12/07 0.0024385300 5.507930e-04 3.191504e-03
54 12/13/07 -0.0115336820 -1.793698e-02 -2.149447e-02
55 12/14/07 -0.0010271160 -2.307745e-03 -1.038483e-03
56 12/17/07 -0.0033969870 -1.822079e-02 -2.920662e-02
57 12/18/07 0.0000000000 -1.873297e-03 -7.061215e-03
58 12/19/07 -0.0004125410 -3.372400e-06 -7.879850e-03
59 12/20/07 0.0008249120 -6.227957e-03 -1.752460e-04
60 12/21/07 -0.0020635580 1.734991e-02 1.348190e-02
61 12/24/07 0.0003098050 0.000000e+00 0.000000e+00
62 12/25/07 0.0000000000 0.000000e+00 0.000000e+00
63 12/26/07 0.0001032470 0.000000e+00 0.000000e+00
64 12/27/07 0.0006192590 5.006783e-03 5.274480e-03
65 12/28/07 -0.0005160230 6.428153e-03 8.557260e-03
66 12/31/07 0.0000000000 0.000000e+00 0.000000e+00
67 1/1/08 0.0002064410 0.000000e+00 0.000000e+00
68 1/2/08 -0.0009293200 -6.023384e-03 -3.104400e-03
69 1/3/08 0.0027853730 -2.302511e-03 -2.759650e-03
70 1/4/08 0.0018526150 -2.149450e-02 -2.645257e-02
71 1/7/08 -0.0005142710 -4.445206e-03 -2.117698e-
1596 <NA> <NA> <NA>
最后一行由于某种原因没有显示值,即使原始 excel 文件中有(X3、X4、X5、X6 丢失,因为这些列彼此堆叠,我从以顶部为例。
我的代码是:
rollapply(ts, 262, lm(
Y~X1+X2+X3+X4+X5+X6+0, subset=1:floor(length(x)/2)),
align="right")
我得到的错误信息是:
Error in eval(expr, envir, enclos) : object 'Y' not found
我真的很想知道为什么它找不到Y
变量,因为它以适当的标题显示在时间序列数据集中。