vech2mat

vech

Optional. If supplied, We assume vech is a
  strictly lower triangluar vech, it does not include
  diagonal values. diag can be either a single value (to
  replace all elements along the diagonal) or a vector of
  the correct length to replace the diagona

diag

This may treat the input vech as the fill material for a
  strictly lower triangle (no diagonal) or it may include
  the diagonal values, depending on the value of the diag
  argument. If diag = NULL (default), this will treat vech
  as if it includes values for the diagonal. If diag is
  either a number or a vector, this will treat vech as
  strictly lower triangular and fill the diagonal with the
  value provided by diag.

A collection of functions for ease of
    presentation and interpretation of regression analysis.
    These functions are developed in response to student requests
    that have arisen in our regression course. For regression
    diagnostics, see mcDiagnose, getDeltaRsquare, meanCenter or
    residualCenter. See the outreg function for a way to generate
    LaTeX tables of regression models. For nice, easy to use pictures,
    see plotSlopes, plotCurves, plotPlane for graphs. There are some
    functions for re-organization of data, especially useful might be
    combineLevels for re-coding factors. The vignette "rockchalk"
    offers a fairly broad survey.  The package title "rockchalk" refers
    to the expression,  "Rock Chalk Jayhawk, Go K.U.".

vech2mat: Convert a half-vector (vech) into a matrix.

Description

Usage

Arguments

See Also

Examples