caretMultimodal failure on run fold model for simuldated data with dt = 0, rho = 0.5

[tonyliang19]

caretMultimodal seems to fail with seed problem? when the internal splitter gives bad split of data. This only fails at simulated data with dt = 0 and rho = 0.5

[tonyliang19]

Try using this as a fix:

grid <- expand.grid(
  alpha = 0,
  lambda = 10^seq(-4, 1, length. Out = 50)
)