Displaying 2 results from an estimated 2 matches for "nelsonaalen".
2018 May 22
2
Nelson-Aalen Estimator in R: Error Message
...lysis in R. I am performing the multiple imputation right now. I want to perform a survival analysis later, but therefore I need to specify the Nelson-Aalen estimator. My dataset is called DF1, the event indicator is Falls and the time variable is Time. The code that I use is as follows:
NAE <- nelsonaalen(data = DF1, statusvar = Falls, timevar = Time)
However, I get this error: Error in Surv(time, status) : Time variable is not numeric
If I do the following:
class(DF1$Time) [1] "numeric"
It shows that my variable is numeric. Can you help me with how I can solve this issue?
Thank you i...
2018 May 22
0
Nelson-Aalen Estimator in R: Error Message
.... I am performing the multiple imputation right now. I want to perform a survival analysis later, but therefore I need to specify the Nelson-Aalen estimator. My dataset is called DF1, the event indicator is Falls and the time variable is Time. The code that I use is as follows:
>
> NAE <- nelsonaalen(data = DF1, statusvar = Falls, timevar = Time)
>
> However, I get this error: Error in Surv(time, status) : Time variable is not numeric
>
> If I do the following:
>
> class(DF1$Time) [1] "numeric"
>
> It shows that my variable is numeric. Can you help me with...