index-subset: Extract parts of an object
In ADtools: Automatic Differentiation Toolbox

Extract parts of an object

Extract.dual(x, i, j, drop = FALSE)

## S4 method for signature 'dual,numeric,missing,ANY'
x[i, j, drop = FALSE]

## S4 method for signature 'dual,missing,numeric,ANY'
x[i, j, drop = FALSE]

## S4 method for signature 'dual,numeric,numeric,ANY'
x[i, j, drop = FALSE]

`x`	A "dual" object.
`i`	integer; the row index.
`j`	integer; the column index.
`drop`	TRUE or FALSE; if TRUE, returns a vector when one dimension of the matrix is 1.