Perform the dot product between a LazyColumn and a numeric vector

Computes the inner product of a LazyColumn object and a numeric vector. If y is a scalar, scalar multiplication is performed. If y is a vector of the same length as the column, the dot product is performed.

Usage

# S4 method for class 'LazyColumn,numeric'
x %*% y

Arguments

x

A LazyColumn object.

y

A numeric scalar or vector.

Value

A numeric value with the resulting scalar.

Examples

mat_a <- base::matrix(rnorm(12), nrow=3, ncol=4)
X <- LazyMatrix(mat_a, "sd", "mean")
b <- rnorm(nrow(X))
lazy_col <- X[, 1]
lazy_col %*% b
#>            [,1]
#> [1,] -0.9452133