which.min2: Return Index of (First) Minimum of a Vector
In dvmisc: Convenience Functions, Moving Window Statistics, and Graphics

Description Usage Arguments Value Examples

Returns index of minimum for vectors and index or (row, column) position for matrices. For optimal speed, use integer = TRUE if x is an integer vector/matrix and integer = FALSE otherwise. Typically faster than which.min for matrices and for large vectors.

1	which.min2(x, arr.ind = FALSE, integer = FALSE)

`x`	Integer or numeric vector/matrix.
`arr.ind`	Logical value for whether to return (row, col) position rather than vector position, if `x` is a matrix.
`integer`	Logical value for whether `x` is an integer vector/matrix.

Numeric value.

# which.min2 vs. which.min for integer vector
x <- rpois(10000, lambda = 10)
all.equal(which.min(x), which.min2(x, integer = TRUE))
benchmark(which.min(x), which.min2(x, integer = TRUE), replications = 10000)

# which.min2 vs. which.min for numeric vector
x <- rnorm(10000)
all.equal(which.min(x), which.min2(x))
benchmark(which.min(x), which.min2(x), replications = 10000)