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2008 Aug 06
1
Variance-covariance matrix for parameter estimates
Dear All,
I am currently working with the coxph function within the package survival.
I have the model h_ij = h_0(t) exp(b1x1 + b2x2) where the indicator
variables
are as follows:
x1 x2
VPS 0 0
LTG 1 0
TPM 0 1
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