Error in re-building vignettes:
  ...
  Number of blocks too large wrt. number of observations, log(m)/log(N) = 1.61/4.79 = 0.34, should be < 1/3, you results may suffer numerical inaccurracy. For detail see Zhang et. al. (2013)
Warning in learner$learn(train, param) :
  Number of blocks too large wrt. number of observations, log(m)/log(N) = 1.61/4.79 = 0.34, should be < 1/3, you results may suffer numerical inaccurracy. For detail see Zhang et. al. (2013)
Warning in learner$learn(train, param) :
  Number of blocks too large wrt. number of observations, log(m)/log(N) = 1.61/4.79 = 0.34, should be < 1/3, you results may suffer numerical inaccurracy. For detail see Zhang et. al. (2013)
Warning in learner$learn(train, param) :
  Number of blocks too large wrt. number of observations, log(m)/log(N) = 1.61/4.79 = 0.34, should be < 1/3, you results may suffer numerical inaccurracy. For detail see Zhang et. al. (2013)
Warning in learner$learn(train, param) :
  Number of blocks too large wrt. number of observations, log(m)/log(N) = 1.61/4.79 = 0.34, should be < 1/3, you results may suffer numerical inaccurracy. For detail see Zhang et. al. (2013)
2017-05-28 16:25:27: Constructing Axis 4/4
2017-05-28 16:25:27: Constructing Axis 1/4
Warning in solve(Matrix(K + diag(lambda, N))) :
  Exact singularity detected during LU decomposition: U[i,i]=0, i=40.
Error in solve(Matrix(K + diag(lambda, N))) : 
  Lapack dgecon(): system computationally singular, reciprocal condition number = 0
Error in LU.dgC(a) : cs_lu(A) failed: near-singular A (or out of memory)
Error in .solve.dgC.lu(as(a, "dgCMatrix"), b = b, tol = tol) : 
  LU computationally singular: ratio of extreme entries in |diag(U)| = 1.058e-112
Error in LU.dgC(a) : cs_lu(A) failed: near-singular A (or out of memory)
2017-05-28 16:25:41: Constructing Axis 2/4
Quitting from lines 34-39 (comparePCA.Rmd) 
Timing stopped at: 25.62 0.116 25.74
Error: processing vignette ‘comparePCA.Rmd’ failed with diagnostics:
cs_lu(A) failed: near-singular A (or out of memory)
Execution halted