cox.zph

If the the <code>fit</code> inherits *both* <code>rpsftm</code> and <code>coxph</code> then this pulls out the genuine 
<code><a href="/link/survival%3A%3Acoxph?package=rpsftm&version=1.2.9" data-mini-rdoc="rpsftm::survival::coxph">survival::coxph</a></code> object that is deeply nested in the object, and then runs <code><a href="/link/survival%3A%3Acox.zph?package=rpsftm&version=1.2.9" data-mini-rdoc="rpsftm::survival::cox.zph">survival::cox.zph</a></code> on it.
Or it avoids overwriting the function from <code>survival</code> by calling <code><a href="/link/survival%3A%3Acox.zph?package=rpsftm&version=1.2.9" data-mini-rdoc="rpsftm::survival::cox.zph">survival::cox.zph</a></code> directly if the object 
does not inherit <code>rpsftm</code>. Or it fails.

Implements methods described by the paper Robins and Tsiatis (1991) <DOI:10.1080/03610929108830654>. These use g-estimation to estimate the causal effect of a treatment in a two-armed randomised control trial where non-compliance exists and is measured, under an assumption of an accelerated failure time model and no unmeasured confounders.

Simon Bond

rpsftm

Rank Preserving Structural Failure Time Models

Annabel Allison

cox.zph function

<dl><dt>fit</dt>
<dd>the result of fitting a rpsftm model using <code><a href="/link/coxph?package=rpsftm&version=1.2.9" data-mini-rdoc="rpsftm::coxph">coxph</a></code> as the inner estimation tool.</dd>
<dt>...</dt>
<dd>any other arguments to pass to <code><a href="/link/cox.zph?package=rpsftm&version=1.2.9" data-mini-rdoc="rpsftm::cox.zph">cox.zph</a></code>.</dd></dl>

Arguments

If the the <code>fit</code> inherits *both* <code>rpsftm</code> and <code>coxph</code> then this pulls out the genuine 
<code><a href='https://rdrr.io/pkg/survival/man/coxph.html'>survival::coxph</a></code> object that is deeply nested in the object, and then runs <code><a href='https://rdrr.io/pkg/survival/man/cox.zph.html'>survival::cox.zph</a></code> on it.
Or it avoids overwriting the function from <code>survival</code> by calling <code><a href='https://rdrr.io/pkg/survival/man/cox.zph.html'>survival::cox.zph</a></code> directly if the object 
does not inherit <code>rpsftm</code>. Or it fails.

Test the proportional hazards assumption of an RPSFTM/Cox Regression — cox.zph

<dl>

<dt>fit</dt>
<dd>the result of fitting a rpsftm model using <code><a href='https://rdrr.io/pkg/survival/man/coxph.html'>coxph</a></code> as the inner estimation tool.</dd>


<dt>...</dt>
<dd>any other arguments to pass to <code><a href='https://rdrr.io/pkg/survival/man/cox.zph.html'>cox.zph</a></code>.</dd>

</dl>

cox.zph: Test the proportional hazards assumption of an RPSFTM/Cox Regression

Description

Usage

Arguments

See Also