analytically compute the variance of a projection given a standard error of beta for a given trait for sparse basis <code>compute_seb_proj_var_sparse</code>

analytically compute the variance of a projection given a standard error of beta for a given trait for sparse basis compute_seb_proj_var_sparse

compute_seb_proj_var_sparse(gwas.DT, shrink.DT, w.DT, sm,
  method = "shrinkage", quiet = FALSE)

Arguments

gwas.DT	a data.table - variants and summary statistics
shrink.DT	a data.table - as returned by `compute_shrinkage_metrics`
w.DT	a data.table - a data table of weights/rotations from a basis first column is 'pid' and subsequent columns for each principal component.
sm	snpMatrix object - a snp matrix object of reference genotypes for
method	scalar - shrinkage method to use (default shrinkage) but also valid is none
quiet	a scalar - boolean whether to show progress messages

a scalar of variances for each principal component