Hi, I was trying to get grid lines drawn in an XY plot. I set par(tck=1), and then issued a plot command. Grid lines were not drawn. tick lines were in their usual(default) places and lengths. I tried setting tck in the "plot" function, but to no avail. Any help would be appreciated. I checked to see if different values were stored, and they were. foo<-par() shows tck to be 1.0. The source also showed that in par.c they were stored inp GP<-tck, but not used in plot.c. BTW I am using R-0.50-a1 on an hpukes-10.2. TIA Osman =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=