[問題] R軟體的ㄧ些疑問
因為小弟我還是初學者,想請問版上的高手一下:
1. .csv檔案,如果已經有指定,該如何輸出資料?該數據是銀行的portfolio!
2.Time series plots的指令該怎麼寫?
3.the correlation matrix of the returns的指令?如果今天有六個數據呢?
4.the correlation matrix的指令?
5.the estimate expected return, covariance matrix, the realized return
的解法?
6.兩個數據的the 95% confidence interval of the correlation coefficient?
7.the optimal weight?the estimated covariance matrix?the estimated variance
?的指令寫法?
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