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Hi I have created a set of 4 barplots using mfrow=c(2,2) and need to add a heading that spans the margin of the bottom 2 graphs. I have used locator(1) to find the coordinates but I dont seem to be able to add text anywhere on this multiplot. I would be really grateful if anyone could tell me if there is a simple method of achieving this. Many thanks Sam Jones -- View this message in