On Sat, 26 Aug 2017 12:38:35 -0600 lily li <chocold12 at gmail.com> wrote: > Hi Ulrik, > > Thanks for your suggestion, but it was not what I meant. I tried to > use the rPref package but just got a very small sample and felt > clueless. > Lily, It would help if you could provide some additional detail. You're leaving any possible helpers clueless. JWDougherty