Function qrResid

qrResid(q: QR, y: readonly number[] | Float64Array<ArrayBufferLike>): number[]
Least-squares residuals for a vector response: y minus its projection onto the space spanned by the first rank pivoted columns. Equivalent to R's qr.resid().

Not supported for a decomposition computed with lapack: true (throws).
Parameters
- q: QR
  A QR decomposition from qr.
- y: readonly number[] | Float64Array<ArrayBufferLike>
  The response vector, with as many elements as the decomposed matrix has rows.
Returns number[]
The residual vector.
Example
```
const q = qr([[1, 1], [1, 2], [1, 3], [1, 4]]);
qrResid(q, [2.1, 3.9, 6.2, 7.8]); // [0.01, -0.13, 0.23, -0.11]
```
- Defined in linalg/qr.ts:594
qrResid(q: QR, y: MatrixInput): number[][]
Least-squares residuals for each column of a matrix response.
Parameters
- q: QR
  A QR decomposition from qr (not lapack: true).
- y: MatrixInput
  The response matrix (array of rows), with as many rows as the decomposed matrix.
Returns number[][]
The residuals as an array of rows.
- Defined in linalg/qr.ts:602
qrResid(q: QR, y: VectorOrMatrix): number[] | number[][]
Least-squares residuals.
Parameters
- q: QR
  A QR decomposition from qr (not lapack: true).
- y: VectorOrMatrix
  The response, a vector or a matrix.
Returns number[] | number[][]
A vector if y is a vector, otherwise an array of rows.
- Defined in linalg/qr.ts:610