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POHow to control the whole margin of a graph(including plot area and title/footnote) in R?
 

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  1. POHow to control the whole margin of a graph(including plot area and title/footnote) in R?
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    <p>I am using both the lattice and ggplots package to create scatterplot in R. when using lattice package, I can contrl the whole graph size (including plot area and title/footnote) with below codes:</p> <pre><code>xyplot( test2 ~ test1, data = in.data, groups = SEX, #title main = textGrob(c("This is the title", "\nThis is the sub-title"), x = unit(c(left.margin,left.margin), "inches"), just = "left", gp = gpar(fontsize = c(title.font, title.font), lineheight=1.5)), #footnote sub = textGrob(paste(footnote1,Sys.time(),sep="\n"), x = unit(c(left.margin), "inches"), y = unit(c(bottom.margin), "inches"), just = c("left", "bottom"), gp = gpar(fontsize = footer.font, lineheight=0.9)) # Figure margins lattice.options = list(layout.widths = leftright.margin, layout.heights = topbottome.margin) ) </code></pre> <p>You can see that the lattice.options can control the whole figure size including title and footnote. while with ggplot2, I create a plot use qplot(...) then control plot margin with:</p> <pre><code>theme(plot.margin=unit(x=c(top.margin,right.margin,bottom.margin,left.margin), units="inches")) </code></pre> <p>then add title and footnote with arrangeGrob. </p> <pre><code> g &lt;- arrangeGrob(myplot, main=textGrob(c(title1, title2), x = unit(c(left.margin,left.margin), "inches"), y = unit(c(-top.margin,-top.margin), "inches"), just = "left", gp = gpar(fontsize = c(title.font, title.font), fontface=c("plain","plain"), lineheight = 1.5)), sub = textGrob(paste(footnote1,Sys.time(),sep="\n"), x = unit(c(left.margin), "inches"), y = unit(c(bottom.margin), "inches"), just = c("left", "bottom"), gp = gpar(fontsize = footer.font,lineheight=0.9))) g </code></pre> <p>In this way, the plot.margin only control the plot area, not control title and footnote. So how should I do to control the both plot area and title area in ggplot2 (just like lattice package)? If the answer is not, in this case I will prefer lattice pakcage.</p>
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