R/divRatio.R

In NMOF: Numerical Methods and Optimization in Finance

Defines functions divRatio

Documented in divRatio

## -*- truncate-lines: t; -*-

divRatio <- function(w, var) {
    w <- c(w)
    n <- dim(var)[[1L]]
    sqrt(var[seq(1L, n*n, by = n + 1L)]) %*% w / sqrt(w %*% var %*% w)
}

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