17 lines
464 B
Python
17 lines
464 B
Python
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from pandas import read_csv, concat, DataFrame
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from iso3166 import countries
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def select_columns() -> [DataFrame]:
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min_year = 2010
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fields = ["POLITICAL_UNIT", "WGMS_ID", "YEAR"]
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iter_csv = read_csv(
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"../../Assets/WGMS-FoG-2019-12-D-CHANGE.csv",
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skipinitialspace=True,
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usecols=fields,
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iterator=True,
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chunksize=100,
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)
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data = concat([chunk[chunk["YEAR"] > min_year] for chunk in iter_csv])
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return data
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