On Fri, Nov 14, 2008 at 2:04 AM, Adrian Johnson
<oriolebaltimore@gmail.com>wrote:

> dear group,
> how can expression data for a group of genes can be correlated to
> survival covariate data using cox model and plot a kaplan-mier curve.
> say i have subset of data from matrix MxN (M genes and N samples). I
> take expression values for YxN (subset of M genes is Y and N are
> collection of cancer and normal) and use recurrance time or survival
> time and check if Y genes are sifnificant under cox model for
> recurrance. if they are sifnificant plot them using kaplan-m curve. I
> want to be able to use coxph and survh functions. I do not know how to
> use both expression data and survival covariate data and see if set of
> genes are sifnificant.
>

You might want to look at the survival package.

Sean

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