#tryCatch version
tryCatch({
if (requireNamespace("INLA", quietly = TRUE) &&
requireNamespace("inlabru", quietly = TRUE)) {
library(INLA)
library(inlabru)
set.seed(123)
m <- 100
loc_2d_mesh <- matrix(runif(m * 2), m, 2)
mesh_2d <- inla.mesh.2d(
loc = loc_2d_mesh,
cutoff = 0.05,
max.edge = c(0.1, 0.5)
)
sigma <- 1
range <- 0.2
nu <- 0.8
kappa <- sqrt(8 * nu) / range
op <- matern.operators(
mesh = mesh_2d, nu = nu,
range = range, sigma = sigma, m = 2,
parameterization = "matern"
)
u <- simulate(op)
A <- inla.spde.make.A(
mesh = mesh_2d,
loc = loc_2d_mesh
)
sigma.e <- 0.1
y <- A %*% u + rnorm(m) * sigma.e
y <- as.vector(y)
data_df <- data.frame(
y = y, x1 = loc_2d_mesh[, 1],
x2 = loc_2d_mesh[, 2]
)
rspde_model <- rspde.matern(
mesh = mesh_2d,
nu_upper_bound = 2
)
cmp <- y ~ Intercept(1) +
field(cbind(x1,x2), model = rspde_model)
rspde_fit <- bru(cmp, data = data_df)
summary(rspde_fit)
}
#stable.tryCatch
}, error = function(e){print("Could not run the example")})
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