The qvcalc package provides R functions to compute and display quasi-variances that often allow a more economical summary of the variance-covariance matrix for parameters in a statistical model.

Full package documentation, including version history, can be viewed at .

For more details on the statistical method, see the references below.

The web page at gives information also about an online calculator implemented in JavaScript, for those who do not use R.

To install the package from CRAN (in R):