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refund (version 0.1-37)

Xt_siginv_X: Internal computation function

Description

Internal function used compute the products in cross-sectional VB algorithm and Gibbs sampler

Usage

Xt_siginv_X(tx, siginv, y = NULL)

Arguments

tx

transpose of the X design matrix

siginv

inverse variance matrix

y

outcome matrix. if NULL, function computes first product; if not, function computes second product.

Author

Jeff Goldsmith ajg2202@cumc.columbia.edu