What method does LineFit use for linear regression with errors in both coordinates?

[OGrowli]

I wasn't sure where to put this question. Can anyone tell me what method LineFit uses to perform linear regression with error in both coordinates? Thank you.

 

[haruspex]

As far as I can make out from http://search.cpan.org/~randerson/Statistics-LineFit-0.07/lib/Statistics/LineFit.pm, it only does a standard (optionally weighted) regression. I.e. the x values are assumed accurate.