Dear Colleagues,

Just to clarify to the above question.

When I ran the cox regression, it didnt even write the name of the variables. Instead, it wrote: x1,x2,x3,x4,x5......

Also, the factor variables with more than one level, the cox regression didnt give me HR, and P value for each level (as you would expect). Instead, it gave a HR and P vlaue for the whole factor variable (as if it treated it as continuous variable)

Nope your SPSS type language doesn't fit with R. Download Jarad Lander R for everyone from the z-library. You will find exactly what you need under survival analysis and GLM

You should be able to copy.this from the book to computer and run.it... Examples can be found in the attached papers. Best wishes for a successful research experience., David Booth PS. Questions welcome here.

Dear Prof Booth and everyone,

I hope all is well

I have improved my syntax alot, Howeverm still getting an error when trying to fit a glmnet

I have downloaded R 4.1.

The following is what happened:

setwd("C:/Users/user/Desktop/R")

library(haven)

install.packages("caret")

install.packages("ggplot2")

library (caret)

install.packages("glmnet", repos = "https://cran.us.r-project.org")

library (glmnet)

install.packages("mlbench")

library (mlbench)

install.packages(c("psych"))

library (psych)

library (survival)

install.packages("survminer")

library (survminer)

install.packages("BiocManager")

library (Biobase)

data