Fit symmetric epsilon-SVR with MAPE loss (deprecated)

Soft-deprecated wrapper retained for backwards compatibility. New code should use psvr(loss = "mape", sym = +1L, ...) (or sym = -1L). Returns the legacy psvr_mape_sym object shape.

Usage

mape_sym_svr(
  X,
  y,
  kernel,
  C,
  eps,
  a = 1,
  solver = c("smo", "osqp"),
  tol = 1e-05
)

Arguments

X, y: Training matrix and strictly-positive target vector.
kernel: Kernel closure from make_kernel().
C: Regularization parameter C > 0.
eps: Insensitivity tube half-width (% units), eps >= 0.
a: Symmetry parameter: 1 (even) or -1 (odd).
solver: Backend: "smo" (default) or "osqp".
tol: Solver zero-threshold.

Value

A list of class "psvr_mape_sym".

Examples

if (FALSE) { # \dontrun{
fit <- psvr(X, y, loss = "mape", sym = +1L,
            kernel = make_kernel("rbf"), C = 10, eps = 5)
} # }