How to plot heatmap with WorldMapR (or similar package)

I'm trying to generate my own heatmap for the prevalence of H5N1 cases by country.

I try the following code:

worldplot(data = Underlag_heatmap, div = 1, ColName = "Cases",CountryName = "iso_a2", CountryNameType = "isoa2",rangeVal=c(0,100))

With the following data:

    structure(list(iso_a2 = c("AF", "BD", "KH", "CA", "CL", "CN", 
"DJ", "EC", "EG", "IN", "ID", "IQ", "LA", "MM", "NP", "NG", "PK", 
"ES", "TH", "TR", "GB", "US", "VN"), Country = c("Azerbaijan", 
"Bangladesh", "Cambodia", "Canada", "Chile", "China", "Djibouti", 
"Ecuador", "Egypt", "India", "Indonesia", "Iraq", "Lao People's Democratic Republic", 
"Myanmar", "Nepal", "Nigeria", "Pakistan", "Spain", "Thailand", 
"Turkey", "United Kingdom of Great Britain and Northern Ireland", 
"United States of America", "Viet Nam"), ...3 = c(NA, NA, NA, 
NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, 
NA, NA, NA, NA), Cases = c(8, 8, 62, 1, 1, 55, 1, 1, 359, 1, 
200, 3, 3, 1, 1, 1, 3, 2, 25, 12, 5, 1, 128), Fatalities = c(5, 
1, 41, 1, 0, 32, 0, 0, 120, 1, 168, 2, 2, 0, 1, 1, 1, 0, 17, 
4, 0, 0, 64), `Mortality rate` = c(0.625, 0.125, 0.661290322580645, 
1, 0, 0.581818181818182, 0, 0, 0.334261838440111, 1, 0.84, 0.666666666666667, 
0.666666666666667, 0, 1, 1, 0.333333333333333, 0, 0.68, 0.333333333333333, 
0, 0, 0.5)), class = c("tbl_df", "tbl", "data.frame"), row.names = c(NA, 
-23L))

I get an error message complaining about a missing Mapfiller argument.

Error in `geom_sf()`:
! Problem while computing aesthetics.
ℹ Error occurred in the 1st layer.
Caused by error:
! object 'MapFiller' not found

I find this confusing since the Mapfiller argument shouldn't have anything to do with the worldplot function. In the documentation it's really only mentioned in the function for categorical variables.

Solution

Here is an example:

worldplot(as.data.frame(Underlag_heatmap),
          ColName = "Cases",
          CountryName = "iso_a2",
          CountryNameType = "isoa2",
          rangeVal = c(0,100),
          annote = F)