iT邦幫忙

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求救急需幫忙

  1. Assume there are 45 students in a class of a high school. They all take 5 courses, namely, calculus, Linear algebra, Management, R programing, and English. The scores of the students are generated by the following R codes:
    student.id <- paste(“student”, 1:45, sep = “.”)
    set.seed(123)
    calculus <- round(rnorm(length(student.id), mean = 65, sd = 10), 0)
    linearAlgebra <- sample(1:100, length(student.id), replace = TRUE)
    management <- sample(1:100, length(student.id), replace = TRUE)
    RProgramming <- sample(1:100, length(student.id), replace = TRUE)
    english <- sample(1:100, length(student.id), replace = TRUE)
    (a) Please file the students’ ID and scores in an excel file;
    (b) Please sort the total scores, consisted of five courses, and then put the result in an excel file.
    Note: You need to capture the screen of the excel software to show you reach the desired.
  2. In R, there is embedded a data set VADeaths; you can type the following instruction to R and get the following reply.
    https://ithelp.ithome.com.tw/upload/images/20210603/20133272MwREcHKNAE.png

The data set is designed for story for the death rates in Virginia (1940). The death rates are measured per 1000 population per year. They are cross-classified by age group (each row in the above graph) and population group (each column in the above graph).
(a) Please draw the following two graphs
(b) What else you can analyze for the data set? Please suggest and do it.
https://ithelp.ithome.com.tw/upload/images/20210603/20133272J2871ZQHnQ.png
https://ithelp.ithome.com.tw/upload/images/20210603/20133272DMO3LGsaYO.png
3. Here is a function that takes any number of vectors. Please interpret the meaning of the following codes in your own language. https://ithelp.ithome.com.tw/upload/images/20210603/20133272oeOc3XIJGz.png

看更多先前的討論...收起先前的討論...
納貝 iT邦新手 1 級 ‧ 2021-06-03 11:23:19 檢舉
作業自己寫
小魚 iT邦大師 1 級 ‧ 2021-06-03 11:59:56 檢舉
也可以花錢找人做
要出多少??
yesongow iT邦大師 1 級 ‧ 2021-06-03 17:40:39 檢舉
作業自己寫
pis520 iT邦新手 2 級 ‧ 2021-06-04 07:22:16 檢舉
完全不懂...?

1 個回答

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hank_itman
iT邦新手 3 級 ‧ 2021-06-04 08:57:52

看起來樓主沒有自己思考過,單純只是要別人幫你做作業,這種作法不可取。

請樓主自己嘗試看看,你可以將你不懂得地方提出來問。

如果不想動腦,想要一整篇請別人幫忙的話,我建議你可以到TESKER出任務,花錢請人幫你寫。

guessvic iT邦新手 4 級 ‧ 2021-06-04 11:24:27 檢舉

樓主指的是:Tasker吧?/images/emoticon/emoticon12.gif

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