<div dir="ltr">Oops, that should be:<div><br></div><div><div style="font-size:12.8000001907349px">Surv(rep(1, n_rows), column1) ~ column2 + column3 + column2*column3 + strata(column4)</div></div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">Thanks!</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 4, 2015 at 5:17 PM, Jeff Alstott <span dir="ltr"><<a href="mailto:jeffalstott@gmail.com" target="_blank">jeffalstott@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hello,<div><br></div><div>I am trying to use DatABEL do run a coxph model. I am not using DatABEL for its intended purpose, of running a straightforward model in which every column is a SNP that will be put into the model. Instead, I need to do something more complex. I would like to do something like this:</div><div><br></div><div>Surv(38579, column1) ~ column2 + column3 + column2*column3 + strata(column4)</div><div><br></div><div>Is this possible in DatABEL? This is actually just setting up the form to do a conditional logistic regression, which if set up correctly is equivalent to a Cox proportional hazards model. The survival package implements this nicely. I just have far too large of a dataset and want DatABEL to help me run the regression.</div><div><br></div><div><br></div><div>survival's clogit:</div><div><a href="https://stat.ethz.ch/R-manual/R-devel/library/survival/html/clogit.html" target="_blank">https://stat.ethz.ch/R-manual/R-devel/library/survival/html/clogit.html</a><br></div></div>
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