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POscaling triple Venn diagram in R with VennDiagram package
 

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  1. POscaling triple Venn diagram in R with VennDiagram package
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    <p>Does anyone know how to get the R package VennDiagram to scale the circles of a Venn diagram containing 3 intersecting sets according to set size?</p> <p>I can achieve such scaling with the venneular package, but I find this a bit limited in terms of other graphical options compared to VennDiagram.</p> <p>The VennDiagram package documentation suggests setting the argument 'scaled' to TRUE ought to do the trick, but I find this produces 3 circles of equal size. </p> <p>The package documentation does cryptically suggest that the scaled argument may only work for certain diagrams:</p> <pre><code>?draw.triple.venn </code></pre> <p>reveals:</p> <p>scaled: "Boolean indicating whether to scale circle sizes in certain Euler diagrams according to set sizes or not" </p> <p>and</p> <pre><code>?venn.diagram #Argument Venn Sizes Class Description #scaled 2, 3 logical Enable scaling for two-set and certain three-set Euler diagrams. </code></pre> <p>A toy example of my code:</p> <pre><code>require(VennDiagram) venn.plot &lt;- draw.triple.venn( area1 = 70, area2 = 250, area3 = 500, n12 = 30, n23 = 60, n13 = 10, n123 = 5, category = c("C1", "C2", "C3"), fill = c("blue", "red", "green"), scaled=TRUE) tiff(filename = "test.tiff", compression = "none",type = "quartz",antialias = "none") grid.draw(venn.plot) dev.off() </code></pre> <p>Similarly this code using the 'venn.diagram' function doesn't produce the required scaling:</p> <pre><code>venn.diagram(x=list(A=c(1:15,16:20), B=c(6:15,21:30,100:150), C=c(11:30,200:300)), filename="test.tiff", fill = c("blue", "yellow", "red"), scaled=TRUE) </code></pre> <p>Thanks v.much</p> <p>Jim</p>
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