library(sp)
library(raster)
georef_file <- "passport_data.csv" # you need to load a file to a dataframe
georef <- read.table(file = georef_file, header = TRUE, quote = "",sep ="\t")
var_tif <- "sol.tif"
var_raster <- raster(var_tif)
sol <- raster::extract(x = var_raster, y = georef[, c("Longitude", "Latitude")])
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