i am fighting a nasty bug that have no idea where to start. this post --
General suggestions for debugging in R
-- has lots of tips and advice about debugging in general. unfortunately, none of the strategies apply to problems within functions called by .Internal()
how do i diagnose a problem that appears to occur within Internal functions rather than within normal R functions?
fresh R session:
> .Internal(La_rs(matrix(1,1),TRUE))
$values
[1] 1
my R session after a long script:
> .Internal(La_rs(matrix(1,1),TRUE))
Error: 'a' must be a complex matrix
i have a separate post that provides a reproducible example for my specific problem, but wanted to pose the question more generally in a separate thread:
how do R users troubleshoot functions called within .Internal()?
