[SPARK-44349][R] Add math functions to SparkR

[zhengruifeng]

What changes were proposed in this pull request?

Add following math functions to SparkR:

• e (discard together with pi, they are both math constants)
• pi (conflict with R's built-in pi constant)
• std
• ln
• negative
• positive
• pow (discard together with power)
• power (conflict with R's built-in power function)
• width_bucket

Why are the changes needed?

for parity

Does this PR introduce any user-facing change?

yes

How was this patch tested?

updated UT

[zhengruifeng]

pi and power are built-in R functions:

> pi
[1] 3.141593
> power
function (lambda = 1)
{
    if (!is.numeric(lambda) || is.na(lambda))
        stop("invalid argument 'lambda'")
    if (lambda <= 0)
        return(make.link("log"))
    if (lambda == 1)
        return(make.link("identity"))
    linkfun <- function(mu) mu^lambda
    linkinv <- function(eta) pmax(eta^(1/lambda), .Machine$double.eps)
    mu.eta <- function(eta) pmax((1/lambda) * eta^(1/lambda -
        1), .Machine$double.eps)
    valideta <- function(eta) all(is.finite(eta)) && all(eta >
        0)
    link <- paste0("mu^", round(lambda, 3))
    structure(list(linkfun = linkfun, linkinv = linkinv, mu.eta = mu.eta,
        valideta = valideta, name = link), class = "link-glm")
}
<bytecode: 0x1444e5aa8>
<environment: namespace:stats>

so remove pi, e (it will be weird to add e alone), pow, power

[zhengruifeng]

merged to master