I am having problem calling ars function in ARS package. My parameter domain does not have upper bound or lower bound, so I did not givevalues to parameters ubx,lbx. But it keeps telling me the starting values I provided didn't have value to the left or to the right of the mode of the target density. I plotted the density function values for the absicssas vs the abscissae, the curve has a mode in the middle. Has anybody have this problem before?Thanks! rhead -- View this message in context: http://www.nabble.com/ARS-function-tp17658712p17658712.html Sent from the R help mailing list archive at Nabble.com.