singlercs {ggrcs} | R Documentation |
singlercs
Description
A Function to Draw Restricted Cubic Splines (RCS)
Arguments
data |
need a dataframe |
fit |
You need the fitted model.Must be lrm , ols or coxph. |
x |
The target variable you wish to fit. It is displayed on the X-axis when plotting. |
Details
You can use this function to easily draw a restricted cubic spline.The function draws the graph through ggplot2.RCS fitting requires the use of the rcs function of the RMS package.Can fit cox regression,logistic regression and linear regression models.
Value
a picture
Examples
library(rms)
library(ggplot2)
library(scales)
dt<-smoke
dd<-datadist(dt)
options(datadist='dd')
fit<- cph(Surv(time,status==1) ~ rcs(age,4)+gender, x=TRUE, y=TRUE,data=dt)
###one group
singlercs(data=dt,fit=fit,x="age")
##two groups
singlercs(data=dt,fit=fit,x="age",group="gender")
[Package ggrcs version 0.4.0 Index]