AttributeError in assign class with format_df function.

[kylacochrane]

Description: Encountered the following error messages while testing the cluster address assignment with 2 or fewer levels using GAS version 0.1.2.

Cluster Address(es): 1 level (e.g., 1):
AttributeError: 'int' object has no attribute 'split'

Cluster Address(es): 2 levels (e.g., 1.1):
AttributeError: 'float' object has no attribute 'split'

Possible Cause: Could be in the format_df function in assign.py at line 88:

genomic_address_service/genomic_address_service/classes/assign.py

Lines 83 to 101 in c6c246f

	def format_df(self,data,delim='.'):
	num_thresholds = len(self.thresholds)
	self.error_samples = []
	membership = {}
	for sample_id in data:
	address = data[sample_id].split(delim)
	if len(address) != num_thresholds:
	self.error_samples.append(sample_id)
	continue
	membership[sample_id] = {}
	for idx,value in enumerate(address):
	l = f'level_{idx}'
	try:
	value = int(value)
	except Exception:
	self.error_samples.append(sample_id)
	del membership[sample_id]
	break
	membership[sample_id][l] = int(value)

Proposed Fix: Modify line 88 to convert data[sample_id] to a string before splitting:

address = str(data[sample_id]).split(delim)