Function factanal

factanal(
    x: readonly (readonly number[])[] | null,
    factors: number,
    options?: FactanalOptions,
): FactanalResult
Maximum-likelihood factor analysis of a data matrix (rows are observations) or, with options.covmat, of a covariance matrix. Equivalent to R's factanal(). With rotation "varimax", "promax" or "none".
Parameters
- x: readonly (readonly number[])[] | null
  The data matrix (array of rows), or null with options.covmat.
- factors: number
  The number of factors.
- options: FactanalOptions = {}
Returns FactanalResult
Example
```
const R = [[1, 0.72, 0.63], [0.72, 1, 0.56], [0.63, 0.56, 1]];
const fa = factanal(null, 1, { covmat: R });
fa.uniquenesses; // [0.19, 0.36, 0.51]
fa.loadings;     // [[0.9], [0.8], [0.7]]
// Factor scores need the data: factanal(x, 1, { scores: "regression" }).scores (one row per row of x)
```
- Defined in descriptive/factanal.ts:206