
利用极值理论,R语言程序计算VaR。
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简介:
The initial fifteen columns of the data were read into a table using the `read.table` function, designated as `dat`. The column names were subsequently extracted and stored in the variable `na`. A new data table, `dat1`, was then created by selecting all columns except the first one, utilizing column indices. The number of columns in `dat1` was determined. The dimensions of this reduced data table, specifically its number of rows (`nr`) and columns (`nc`), were recorded. Finally, a logarithmic value was calculated, represented by the variable `logr`, based on the negative values within `dat1`.
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