sampleCov

sampleCov(data, names): object

Defined in: fit.js:29

Sample covariance matrix and means from raw data.

Uses the maximum-likelihood divisor N (lavaan’s default rescaling), not the unbiased N - 1. Every value must be finite; missing or non-numeric data raises an Error, so impute or drop it first.

Parameters

data

any[]

Rows as objects, one field per variable

names

string[]

Variable names to include, in output order

Returns

object

S is the names.length square covariance matrix, means the per-variable means, n the number of rows

means

means: number[]

n

n: number

S

S: number[][]