r.covar
Outputs a covariance/correlation matrix for user-specified raster layer(s).
Raster (r.*)
QgsProcessingParameterMultipleLayers|map|Input layers|3|None|False
QgsProcessingParameterBoolean|-r|Print correlation matrix|True
QgsProcessingParameterFileDestination|html|Covariance report|Html files (*.html)|report.html|False