以下是VennDiagram文档中的示例：
venn.plot <- draw.quad.venn(
area1 = 80,
area2 = 80,
area3 = 80,
area4 = 80,
n12 = 44,
n13 = 27,
n14 = 32,
n23 = 38,
n24 = 32,
n34 = 20,
n123 = 18,
n124 = 17,
n134 = 11,
n234 = 13,
n1234 = 6,
category = c("First", "Second", "Third", "Fourth"),
fill = c("orange", "red", "green", "blue"),
lty = "dashed",
cex = 2,
cat.cex = 2,
cat.col = c("orange", "red", "green", "blue")
);
“第三”和“第四”椭圆比其他椭圆小，即使它们的大小相同。我知道我不能将每个重叠缩放到等于重叠的大小。是否可以使所有四种形状的尺寸相同？
