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🚧 ALTO: Extract a function to calculate statistics on xpath expressions

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Gerber, Mike 2022-05-23 19:33:54 +02:00
parent e24a846ea2
commit 9246519162
1 changed files with 16 additions and 8 deletions
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16
qurator/modstool/altotool.py
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@ -81,14 +81,22 @@ def alto_to_dict(alto, raise_errors=True):
value['Page'].update(TagGroup(tag, group).subelement_counts())
xpath_expr = "//alto:String/@WC"
alto_namespace = ET.QName(group[0]).namespace
namespaces={"alto": alto_namespace}
def xpath_statistics(xpath_expr, namespaces):
values = []
for e in group:
# TODO need a smart way to always have the correct namespaces for a document
alto_namespace = ET.QName(e).namespace
r = e.xpath(xpath_expr, namespaces={"alto": alto_namespace})
r = e.xpath(xpath_expr, namespaces=namespaces)
values += r
values = np.array([float(v) for v in values])
value['Page'][f'{xpath_expr}-mean'] = np.mean(values)
statistics = {}
statistics[f'{xpath_expr}-mean'] = np.mean(values)
return statistics
value['Page'].update(xpath_statistics(xpath_expr, namespaces))
elif localname == 'Styles':
pass