{{alias}}( N, x, strideX, y, strideY ) Interchanges vectors `x` and `y`. The `N` and `stride` parameters determine how values from `x` are swapped with values from `y`. Indexing is relative to the first index. To introduce an offset, use typed array views. If `N` is less than or equal to `0`, the vectors are unchanged. Parameters ---------- N: integer Number of values to swap. x: Array|TypedArray First input array. strideX: integer Index increment for `x`. y: Array|TypedArray Second input array. strideY: integer Index increment for `y`. Returns ------- y: Array|TypedArray Input array `y`. Examples -------- // Standard usage: > var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ]; > var y = [ 6.0, 7.0, 8.0, 9.0, 10.0 ]; > {{alias}}( x.length, x, 1, y, 1 ) [ 1.0, 2.0, 3.0, 4.0, 5.0 ] // Advanced indexing: > x = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ]; > y = [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ]; > var N = {{alias:@stdlib/math/base/special/floor}}( x.length / 2 ); > {{alias}}( N, x, -2, y, 1 ) [ 5.0, 3.0, 1.0, 10.0, 11.0, 12.0 ] // Using typed array views: > var x0 = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] ); > var y0 = new {{alias:@stdlib/array/float64}}( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] ); > var x1 = new {{alias:@stdlib/array/float64}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); > var y1 = new {{alias:@stdlib/array/float64}}( y0.buffer, y0.BYTES_PER_ELEMENT*3 ); > N = {{alias:@stdlib/math/base/special/floor}}( x0.length / 2 ); > {{alias}}( N, x1, -2, y1, 1 ) [ 6.0, 4.0, 2.0 ] > y0 [ 7.0, 8.0, 9.0, 6.0, 4.0, 2.0 ] {{alias}}.ndarray( N, x, strideX, offsetX, y, strideY, offsetY ) Interchanges vectors `x` and `y` using alternative indexing semantics. While typed array views mandate a view offset based on the underlying buffer, the `offset` parameters support indexing semantics based on starting indices. Parameters ---------- N: integer Number of values to swap. x: Array|TypedArray First input array. strideX: integer Index increment for `x`. offsetX: integer Starting index for `x`. y: Array|TypedArray Second input array. strideY: integer Index increment for `y`. offsetY: integer Starting index for `y`. Returns ------- y: Array|TypedArray Input array `y`. Examples -------- // Standard usage: > var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ]; > var y = [ 6.0, 7.0, 8.0, 9.0, 10.0 ]; > {{alias}}.ndarray( x.length, x, 1, 0, y, 1, 0 ) [ 1.0, 2.0, 3.0, 4.0, 5.0 ] // Advanced indexing: > x = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ]; > y = [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ]; > var N = {{alias:@stdlib/math/base/special/floor}}( x.length / 2 ); > {{alias}}.ndarray( N, x, 2, 1, y, -1, y.length-1 ) [ 7.0, 8.0, 9.0, 6.0, 4.0, 2.0 ] See Also --------