search for: mu_x0

Displaying 1 result from an estimated 1 matches for "mu_x0".

Did you mean: mu_x
2023 Nov 08
1
Problem in R code
...sults <- data.frame() #A data frame to store the results for(i in 1:8) { LST_city <- extract(LST, c(lon[i],lat[i]), fun = mean, buffer = 10000, na.rm = TRUE) #error } # Fit a 2D Gaussian surface to the LST data x <- coordinates(LST)[,1] y <- coordinates(LST)[,2] z <- values(LST) mu_x0 <- mean(x) mu_y0 <- mean(y) sigma_x0 <- sd(x)/2 sigma_y0 <- sd(y)/2 amp0 <- max(z) opt <- optim(c(mu_x0, mu_y0, sigma_x0, sigma_y0, amp0), sse) #error 2 #Calculate the footprint of SUHI effect (FP) by the Gaussian surface FP <- which(gaussian2d(x, y, opt$par, opt$par, opt$...