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...think plot(nearma$all.age,coxfita$linear.predictors) is quite right. Thank you for your help, Laura --- End included There is not a simple plot: hazard is a function of both time and age, so will be a 2-d surface. A common plan is to plot the predicted survival for a small set of ages. ageset <- c( 40, 55, 70) curves <- survfit(coxfita, newdata= data.frame(all.age = ageset)) plot(curves, col=1:3) This will give a plot with 3 predicted survival curves, for ages 40, 55 and 70. The plot of hazard vs age at any particular time point is not very interesting: it will be h(t,...