def resource_bowtie2_log(uri, **kwargs):
with open(uri) as fh:
data = "".join(fh)
index = ['Number of Reads', 'Number Unpaired',
'Number Unaligned', 'Number Uniquely Aligned',
'Number Ambiguously Aligned']
values = []
for row in data.strip().split('\n'):
if not row.startswith('Warn'):
values.append(re.sub(r' *(\d+)[ %]+.+', r'\1', row))
df = DataFrame([int(x) for x in values[:-1]], index=index)
df.index.name = 'statistic'
df.columns = ['counts']
return df
