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POHow can I obtain an 'unbalanced' grid of ggplots?
 

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  1. POHow can I obtain an 'unbalanced' grid of ggplots?
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    <p>With <code>grid.arrange</code> I can arrange multiple <code>ggplot</code> figures in a grid to achieve a multi-panel figure by using something like:</p> <pre><code>library(ggplot2) library(grid) library(gridExtra) </code></pre> <p>generate some ggplot2 plots , then</p> <pre><code>plot5 &lt;- grid.arrange(plot4, plot1, heights=c(3/4, 1/4), ncol=1, nrow=2) </code></pre> <p>How can I obtain an 'unbalanced' 2 col layout with one plot in the entire first col and three plots in the second col? I toyed with a 'grid-of-grids' approach by trying to use <code>grid.arrange</code> to plot one grid (e.g. <code>plot5</code>, above) against another plot, but obtained:</p> <blockquote> <p>Error in arrangeGrob(..., as.table = as.table, clip = clip, main = main, : input must be grobs!</p> </blockquote> <p><strong>Update:</strong></p> <p>Thanks for the advice. I will look into <code>viewports</code> and <code>grid</code>. In the meantime, thanks to @DWin, the <code>layOut</code> function in the 'wq' package worked very well for the compilation figure in my <code>Sweave</code> document: <img src="https://i.stack.imgur.com/ECZdb.png" alt="enter image description here"></p> <p><strong>Update 2:</strong></p> <p>The <code>arrangeGrob</code>command (as suggested by @baptiste) also works well, and seems very intuitive - at least it was easy to alter widths of the two columns. It also has the benefit of not requiring the `wq' package. </p> <p>e.g. Here is the code from my Sweave file:</p> <pre><code>&lt;&lt;label=fig5plot, echo=F, results=hide&gt;&gt;= plot5&lt;-grid.arrange(plot4, arrangeGrob(plot1, plot2, plot3, ncol=1), ncol=2, widths=c(1,1.2)) @ \begin{figure}[] \begin{center} &lt;&lt;label=fig5,fig=TRUE,echo=T, width=10,height=12&gt;&gt;= &lt;&lt;fig5plot&gt;&gt; @ \end{center} \caption{Combined plots using the `arrangeGrob' command.} \label{fig:five} \end{figure} </code></pre> <p>which produces the following output: <img src="https://i.stack.imgur.com/043sb.png" alt="enter image description here"></p> <p>BTW, Anyone tell me why the '>NA' appears?</p>
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      1. POHow can I obtain an 'unbalanced' grid of ggplots?
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    1. COYou might have to set up the viewports yourself -- `grid.arrange` might not be flexible enough (search stackoverflow for "[r] grid viewport")
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      1. POHow can I obtain an 'unbalanced' grid of ggplots?
      1. USBen Bolker
    2. CO@BenBolker Has pointed you in a fruitful direction using `grid`. See also Hadley's ggplot2 book, Section 8.4.2.
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    3. CO@BenBolker `grid.arrange` can be used with nested viewports using its companion `arrangeGrob` (essentially returning a `gTree`), as in the example I gave below.
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