Episode 4: Data Structures: Exploring Data Frames - rbind and factors

[cengel]

R is not giving a warning when executing rbind(gapminder, new_row). gapminder$continent is not a factor.

r-intro-geospatial/_episodes_rmd/04-data-structures-part2.Rmd

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To understand why R is giving us a warning when we try to add this row, let's learn a little more about factors.

It does, however, for the same reason, generate a warning message after running this:
levels(gapminder$continent) <- c(levels(gapminder$continent), "Nordic")
gapminder_norway <- rbind(gapminder, list('Norway', 2016, 5000000, 'Nordic', 80.3,49400.0, FALSE))

r-intro-geospatial/_episodes_rmd/04-data-structures-part2.Rmd

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levels(gapminder$continent)

And the fix suggested gapminder$continent <- as.character(gapminder$continent) also needs to be adjusted.