Create dataframe with values of each variable on each site
data_JSDM(EPSG = 3163, latlon_site, area_site, path_tiff, log_area_site = TRUE)int. target EPSG, default 3163
float matrix with 2 columns. Columns are longitude and latitude in this order.
float vector same dimension then number of row `latlon`. area of each site in m²
character. path to Tiff file with explanatories variables
boolean. Replace area of each site by log area of each site. Anyway, this variable is scale.
matrix with latitude, longitude and all variables. If `latlon_site` has row names, output has same row name.