# Conjoint analysis in R

I am doing a conjoint analysis with stated choice probabilities. I have collected data on smartwatches preferences but asked the respondents not for a single choice but to allocate preferences.

For example, when presented with 3 smartwatches and a no-choice option put a 20%, 30%, 50%, 0%, respectively for each option displayed.

Do I have to use the standard conjoint-package or the mlogit-package or maybe something else?