Multiply a numeric scalar or vector by a LazyColumn

Computes the element-wise multiplication of a LazyColumn object with a numeric value, preserving the lazy structure. If e1 is a scalar, scalar multiplication is performed. If e1 is a vector of the same length as the column, element-wise multiplication is performed.

Usage

# S4 method for class 'numeric,LazyColumn'
e1 * e2

Arguments

e1

A numeric scalar or vector.

e2

A LazyColumn object.

Value

A numeric vector with the resulting vector.

Examples

mat_a <- base::matrix(rnorm(12), nrow=3, ncol=4)
X <- LazyMatrix(mat_a, "sd", "mean")
lazy_col <- X[, 1]
2* lazy_col
#> [1]  2.097732 -1.885311 -0.212421
rnorm(nrow(X)) * lazy_col
#> [1] -0.58444438 -0.79645364  0.08307805