Table 1:

Random variables used throughout. Upper case letters with tilde denote random matrices of size $\tilde{n}\times k$ with one row per node in the tree while capital letter without tilde denote the submatrix of size $n\times k$ corresponding to the leaf nodes.

Random Variables	Sizes	Meaning
$\tilde{Z},Z$	$\tilde{n}\times k,n\times k$	Lineage tracing states without missing data
$\tilde{R},R$	$\tilde{n}\times k,n\times k$	Binary response (1)/missingness (0) mask
$\tilde{X},X$	$\tilde{n}\times k,n\times k$	Lineage tracing states with missing data