使用 DiagrammeR 以编程方式生成 Consort 图的 R 代码？答案

【问题标题】：R code to produce a Consort diagram programmatically using DiagrammeR?使用 DiagrammeR 以编程方式生成 Consort 图的 R 代码？
【发布时间】：2021-11-19 02:25:28
【问题描述】：

我想以编程方式创建一个 Consort 图来描述随机试验中患者的流动情况。

有没有人有 R 代码来使用 DiagrammeR 生成这个图表（见下面的链接）？

http://www.consort-statement.org/consort-statement/flow-diagram

【问题讨论】：

标签： r graphics graphviz diagrammer

【解决方案1】：

5年前在stackoverflow上问过。答案使用包diagram： creating tree diagram for showing case count using R

Google 发现了一些 graphviz 代码： http://blogs.sas.com/content/graphicallyspeaking/2016/10/20/outside-box-consort-diagram/

RStudio 可以直接预览 Graphviz .dot 文件：

https://blog.rstudio.org/2015/05/01/rstudio-v0-99-preview-graphviz-and-diagrammer/

或者，

library(DiagrammeR)
consort <- file("consort.dot")
grViz(diagram = consort)
close(consort)

“consort.dot”如下：

digraph g {
start [shape = box, label = "CONSORT Graph"];
node0 [shape = box, label = "All Patients\nN=1000"];
node1 [shape = box, label = "Full Analysis Set\nN=800"];
node2 [shape = box, label = "Excluded\nN=100"];
node3 [shape = box, label = "Not Included\nN=100"];
node4 [shape = box, label = "Safety Set\nN=700"];
node5 [shape = box, label = "Not Dosed\nN=100"];
node6 [shape = box, label = "Treatment A\nN=200"];
node7 [shape = box, label = "Treatment B\nN=150"];
node8 [shape = box, label = "Treatment C\nN=200"];
node9 [shape = box, label = "Treatment D\nN=150"];
start -> node0 -> node1 -> node4 -> {node6 node7 node8 node9};
node0 -> node2;
node0 -> node3;
node1 -> node5;
}

【讨论】：