extract.variance_covariance | R Documentation |
extract.variance_covariance
return the adequate sub-matrix.
## S3 method for class 'variance_covariance' extract( struct, what = c("YY", "YZ", "ZZ"), masque_data = c(rep(TRUE, attr(struct, "ntaxa") * attr(struct, "p_dim")), rep(FALSE, (dim(struct)[1] - attr(struct, "ntaxa")) * attr(struct, "p_dim"))) )
struct |
structural matrix of size (ntaxa+Nnode)*p, result
of function |
what: |
sub-matrix to be extracted: "YY" : sub-matrix of tips (p*ntaxa first lines and columns) "YZ" : sub matrix tips x nodes (p*Nnode last rows and p*ntaxa first columns) "ZZ" : sub matrix of nodes (p*Nnode last rows and columns) |
miss; |
missing values of Y_data |
sub-matrix of variance covariance.
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