FEM | R Documentation |
This function defines a FEM object.
FEM(coeff,FEMbasis)
coeff |
A vector or a matrix containing the coefficients for the Finite Element basis expansion. The number of rows
(or the vector's length) corresponds to the number of basis in |
FEMbasis |
A |
An FEM
object. This contains a list with components coeff
and FEMbasis
.
library(fdaPDE) ## Upload the horseshoe2D data data(horseshoe2D) ## Create the 2D mesh mesh = create.mesh.2D(nodes = rbind(horseshoe2D$boundary_nodes, horseshoe2D$locations), segments = horseshoe2D$boundary_segments) ## Create the FEM basis FEMbasis = create.FEM.basis(mesh) ## Compute the coeff vector evaluating the desired function at the mesh nodes ## In this case we consider the fs.test() function introduced by Wood et al. 2008 coeff = fs.test(mesh$nodes[,1], mesh$nodes[,2]) ## Create the FEM object FEMfunction = FEM(coeff, FEMbasis) ## Plot it plot(FEMfunction)
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