#1.Background of the work: I am trying to workout the habitat suitability modeling of a tree species endemic to the Western Ghats. This query is regarding a confusion that arose when doing General Niche-Environment System Factor Analysis (GNESFA). #2.Main Query: While doing GNESFA, I got some strange results while plotting the niche on the factorial axes ( please see the attached figures). Extreme dark circles are forming in the scatter plot. Can anyone please help me in finding out why this is happening. #3.Attachments: Final result and specific plot of niche on the factorial axes are attached.
Thank you very much for all your patient reading and time. Hoping for a positive response.
Dear Mr. Pietro Milanesi,
Thank you very much for your quick and detailed response.
I have a total of 507 presence and my study area have a total of 357860 pixels and subsequently 357353 available units are there (357860-507). There were no error-popups when I run my codes. However, I have attached the code here.
library(raster)
library(rgdal)
library(sf)
library(sp)
library(adehabitatHS)
mdq = SpatialPixelsDataFrame(points = Rasters.df[c("x", "y")], data = m1.df,tolerance = sqrt(.Machine$double.eps), proj4string = CRS(projection(Rd)))
s
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