fixed vcf unknown character check
@@ -426,7 +426,7 @@ class TreeAnc(object):
def extend_profile(self):
if self.aln:
if self.is_vcf and self.ref:
- unique_chars = np.unique(np.array(self.ref))
+ unique_chars = np.unique(list(self.ref))
else:
tmp_unique_chars = []
for node in self.tree.get_terminals():
