Description Usage Arguments Examples
This function scrapes search results from the National Diet Library's digital collection, counts numbers of hits per years, and generates a full times series with 0 values for missing years. The search url is http://dl.ndl.go.jp/
1 | NDL_counter(pattern, start_date, end_date)
|
pattern |
a string literal or object |
start_date |
a number for the start year |
end_date |
a number for year the end year |
1 | NDL_counter("x", 1920, 1922)
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