gtfs2gps() - possible bug with filter_week_days()

[pedro-andrade-inpe]

Filtering with filter_week_days() requires remove_invalid() to make gtfs2gps() working properly. The following code works:

  fortaleza <- system.file("extdata/fortaleza.zip", package="gtfs2gps")

  gtfs <- read_gtfs(fortaleza) %>%
    filter_week_days() %>% 
    remove_invalid()
  
  fortaleza_gps <- gtfs2gps(gtfs, progress = FALSE)

The following code stops with an error:

  fortaleza <- system.file("extdata/fortaleza.zip", package="gtfs2gps")

  gtfs <- read_gtfs(fortaleza) %>%
    filter_week_days()
  
  fortaleza_gps <- gtfs2gps(gtfs, progress = FALSE)

[pedro-andrade-inpe]

The code above does not produce an error anymore, only two warnings related to shape ids that have zero stops. As we have decided not to remove_invalid automatically, I have just updated the documentation.