[R] question on boot

From: Lisa Wang <lisawang_at_uhnres.utoronto.ca>
Date: Fri 10 Jun 2005 - 00:10:02 EST


Hello there:

Dear Dr. Murdoch,

I'm a statistician at Princess Margaret Hospital. Could you please help me with the bootstrapping?

Can boot function (along with boot.ci) handle multivariate statistics? My intention is that I want to group the outcome data and evaluate the proportion of patients who are positive for a marker within each group. (i.e. I have two variables, a predictor and an outcome. The predictor is continuous and the outcome is binary. I want a statistic which groups patients based on the predictor variable (0-10, 10-20, 20-30, etc;) and check the proportion of patients who are positive for the outcome variable within each group).

Regards

Lisa Wang Msc.
Princess Margaret Hospital
Toronto, Ca
tel 416 9464501 ext. 5201



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