Link at the end of the problem: https://www.windows2universe.org/?page=/sun/atmo

Question

Link at the end of the problem: https://www.windows2universe.org/?page=/sun/atmosphere/sunspots.html Link at the end of the problem: https://www.windows2universe.org/?page=/sun/atmosphere/sunspots.html
4. Figure 4.21 shows the byearly number of sunspots fron June 1749 to Decennber 1978 with n = 459 points (that's TWO observations per year). The data are in sunspotz and be careful because R comes with various data series with the name 'sunspots'. Throughout the problem, it is better if you do NOT plot the estimates on a log scale. Information about the data can be found at sunspots (a) As a first step, obtain the periodogram of the number of sunspots and identify the predominant periods. (b) Next, obtain a nonparametric estimate of the spectral density and identify the predominant periods (c) Finally, obtain a parametric estimate of the spectral density and identify the predominant periods. (d) Briefly, compare and contrast the estimates you obtained in parts (a) (c)

Explanation / Answer

The top image is not clearly visible(kindly repost) and also could you attach additional information.

Related Questions

Navigate

• Browse (All)
• Browse L
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.