Changes in nominal effort over time. Annual total number of fishing and searching days.
fishing_effort(dataframe, graph_type = "plot", title = FALSE)
data.frame expected. Csv or output of the function data_extraction, which must be done before using the fishing_effort() function.
character expected. plot, plotly or table. Plot by default.
TRUE or FALSE expected. False by default.
The function return ggplot R plot.
The input dataframe must contain all these columns for the function to work [see referentials]:
activity_date
vessel_code
flag
fleet
vessel_label
landing_date
ocean_code
harbour_label
set_duration
vessel_type_code
total_hour_at_sea
total_hour_fished
Add these columns for an automatic title (optional):
country_code