Chang Liu hotmail.com> writes:
>
> data(aml)
> If I use instead dummy variables:
>
> aml$x1 = (aml$x=="maintained")aml$x2 = (aml$x=="unmaintained")
> and I want to plot the survival curve using x1, x2, and I just want the 2
levels, rather than 4 curves from:
I don's understand what you want, b
Hello:
Using the built-in dataset aml as an example:
data(aml)
If I use instead dummy variables:
aml$x1 = (aml$x=="maintained")aml$x2 = (aml$x=="unmaintained")
and I want to plot the survival curve using x1, x2, and I just want the 2
levels, rather than 4 curves from:
fit <- survfit(Surv(
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