# Notes - xflouris/libpll GitHub Wiki

Welcome to the libpll wiki!

# NOTES

cannot be called before initializing the tip states**pll_set_invariant_sites_proportion(...)**- each time the proportion of invariant sites is updated, it is also necessary to update the probability matrices:
**pll_update_prob_matrices(...)** - We should take care when we implement the pattern compresion. If the proportion of invariable sites is set, that must be done
**after**removing the duplicated sites.