regplot绘制高级nomogram

安装补充包

高级nomogram

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library(rms)
library("survival")
library("survminer")
library(regplot)
mycol<-c("#A6CEE3","#1F78B4","#33adff","#2166AC")
names(mycol) = c("dencol","boxcocl","obscol","spkcol")
mycol<- as.list(mycol)
dd=datadist(df)
options(datadist="dd")
coxmf <- paste0("Surv(time, status==1)~", paste(colnames(df)[1:8], collapse = '+'))
coxmf
f1 <- cph(formula(coxmf), data=df, x=T, y=T, surv = T) # 构建COX比例风险模型
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options(repr.plot.width=12, repr.plot.height=12)
{pdf("nomogram_new.pdf");{
print(dev.list())
dev.set(2)
regplot(f1,
# observation=df[1,], #也可以不展示
failtime = 12*c(1,3,5), #预测1年、3年和5年的死亡风险
prfail = TRUE, #cox回归中需要TRUE
showP = T, #是否展示统计学差异
droplines = F,#观测2示例计分是否画线
colors = mycol, #用前面自己定义的颜色
interval="confidence", #展示观测的可信区间
clickable=F)
print(dev.list())
graphics.off()
}}

博主PS:这个regplot的绘图输出好奇怪,不知道为啥这样写可以被pdf捕获

重抽样校正曲线

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set.seed(0)
cal_0 <- calibrate(f1, u=1*12, cmethod='KM', method='boot', m=98, B=1000)
set.seed(0)
cal_1 <- calibrate(f1, u=3*12, cmethod='KM', method='boot', m=98, B=1000)
set.seed(0)
cal_2 <- calibrate(f1, u=5*12, cmethod='KM', method='boot', m=98, B=1000)
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pdf(file = 'calibrate.pdf', width = 6, height = 6);{plot(cal_0,lwd=2,lty=1,  ##设置线条宽度和线条类型
errbar.col='#0072B5AA', ##设置一个颜色
xlab='Nomogram-Predicted Probability of DFS',#便签
ylab='Actual DFS(proportion)',#标签
col='#BC3C29AA',#设置一个颜色
xlim = c(0.1,1),ylim = c(0.1,1),##x轴和y轴范围
mgp = c(2, 1, 0))
plot(cal_1,lwd=2,lty=1, ##设置线条宽度和线条类型
errbar.col='#20854EAA', ##设置一个颜色
col='#E18727AA',#设置一个颜色
add = T,
xlim = c(0.1,1),ylim = c(0.1,1),##x轴和y轴范围
mgp = c(2, 1, 0)) #控制坐标轴的位置
plot(cal_2,lwd=2,lty=1, ##设置线条宽度和线条类型
errbar.col='#6F99ADAA', ##设置一个颜色
col='#EE4C97AA',#设置一个颜色
add = T,
xlim = c(0.1,1),ylim = c(0.1,1),##x轴和y轴范围
mgp = c(2, 1, 0))
legend("bottomleft",c('1-year', '3-year', '5-year'),
col=c("#BC3C29AA","#E18727AA","#EE4C97AA"),lty=1,lwd=2)};dev.off()

导出nomogram的风险预测值

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df$Risk_Score <- predict(f1,type="lp",newdata=df)
df

regplot绘制高级nomogram
https://occdn.limour.top/2223.html
Author
Limour
Posted on
August 11, 2022
Licensed under