Solving Message "VC matrix non positive definite" from MiX99

Source: R/SolvingErrorFromMiX99.R

In the software MiX99 of Luke can the message "VC matrix non positive definite" poping up. To solve this issue, the VC file non positive definite can be used as input and a solution will be proposed as output file.

solving_errorFromMiX99_VCnotPD(
  ps_input_file,
  pn_ratio = NULL,
  pn_eps = NULL,
  pmat_weight = NULL,
  pn_digits = NULL,
  ps_output_file
)

Arguments

ps_input_file

input file with VC in MiX99
pn_ratio

specified ratio between largest and smallest eigenvalue
pn_eps

smallest eigenvalue in weighted bending
pmat_weight

weight matrix for weighted bending
pn_digits

number of digits to be rounded to
ps_output_file

solved file with VC for MiX99