worldclim_countries() and worlrldclim_tiles() always fetch 30-arcmin rasters, despite "res" argument

[adamlilith]

I've been finding that the worldclim_countries and worldclim_tile functions always download the 30-arcmin version of rasters despite specifying res to be something else. This happens even after I clean out the previously downloaded files and restart R.

library(geodata)
bios <- geodata::worldclim_country('MDG', var='bio', res=10, path=getwd())

bios

class       : SpatRaster 
dimensions  : 1740, 900, 19  (nrow, ncol, nlyr)
resolution  : 0.008333333, 0.008333333  (x, y)
extent      : 43, 50.5, -26, -11.5  (xmin, xmax, ymin, ymax)
coord. ref. : lon/lat WGS 84 (EPSG:4326) 
source      : MDG_wc2.1_30s_bio.tif 
names       : wc2.1~bio_1, wc2.1~bio_2, wc2.1~bio_3, wc2.1~bio_4, wc2.1~bio_5, wc2.1~bio_6, ... 
min values  :    11.29167,     6.12500,    54.04762,    90.91286,        18.6,         2.0, ... 
max values  :    28.05000,    16.55833,    77.26189,   327.99295,        36.8,        21.2, ... 

Same thing for:

• other variables (tmin, tmax, prec)
• worldclim_tile

However, worldclim_global does get the correct resolution rasters when res is specified.

> sessionInfo()
R version 4.2.1 (2022-06-23 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.utf8  LC_CTYPE=English_United States.utf8    LC_MONETARY=English_United States.utf8
[4] LC_NUMERIC=C                           LC_TIME=English_United States.utf8    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] geodata_0.4-11 terra_1.6-17  

loaded via a namespace (and not attached):
[1] compiler_4.2.1   tools_4.2.1      Rcpp_1.0.9       codetools_0.2-18

[rhijmans]

That is because they do not have an argument "res". Only worldclim_global has that argument (see the arguments under "Usage"). What happens is that argument res gets passed on to, and silently ignored by download.files.