help hdi() fail gracefully with fixed draws

[kevingoneill]

Hi,

I'm running into an issue where sometimes my draws are fixed (i.e., all samples have the same value), like for the diagonals of a covariance matrix. This works fine for some summary functions, e.g., qi(rep(0, times=10000)) yields the desired output of [0, 0].

But if I try hdi(rep(0, times=10000)), I get the error Error in bw.SJ(x, method = "dpi", ...) : sample is too sparse to find TD. From what I can tell, this used to work in previous versions of ggdist, and has stopped working with the recent introduction of density_bounded and density_unbounded. Is there a way to handle this more gracefully with the new density functions?

P.S. I love this package, and use it all the time- thanks for developing it!

[mjskay]

Thanks! Should be fixed on the github version now; can be installed via remotes::install_github("mjskay/ggdist")