Description Usage Arguments Value
creates data frame of cover data from polygon data layer from gdb
1 | create_cover_df(df, quad_info, desired_columns)
|
df |
data frame of polygon data created by readOGR |
quad_info |
information about quadrat name and year gleaned from layer file name |
desired_columns |
vector of column names that should be extracted from the attribute table |
returns a data frame with columns: quadrat, year, species_code, area, perimeter
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