Just a bug fix so that it won't check the taus if check.taus == FALSE.
This is important because currently if you do RVineStructureSelect where some of the inputs are identical, it crashes with this error. With my patch, you can get something like this:
http://bostonfusion.com/alexgeorge/awesomePlot.pdf
If tau ~ 1, then it will not be able to find good parameters for Frank and Joe copulas, but that's okay, because in the case where tau ~ 1, the dependency is modeled perfectly well with an elliptical copula. So, the other two lines just set those parameters to infinity in this case.
Just a bug fix so that it won't check the taus if check.taus == FALSE.
This is important because currently if you do RVineStructureSelect where some of the inputs are identical, it crashes with this error. With my patch, you can get something like this: http://bostonfusion.com/alexgeorge/awesomePlot.pdf
If tau ~ 1, then it will not be able to find good parameters for Frank and Joe copulas, but that's okay, because in the case where tau ~ 1, the dependency is modeled perfectly well with an elliptical copula. So, the other two lines just set those parameters to infinity in this case.