Found the following significant warnings:

  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in Eigenobject$values + lambda : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
  Warning in c(min(Ylo) - 0.25 * sqrt(var(pout$fit)), max(Yhi)) + 0.25 * sqrt(var(pout$fit)) : Recycling array of length 1 in vector-array arithmetic is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.