<!doctype s-function-doc system "s-function-doc.dtd" [
<!entity % S-OLD "INCLUDE">
]
>
<s-function-doc>
<s-topics>
<s-topic> lmRob.RFPE </s-topic>
</s-topics>
<s-title>
Robust Final Prediction Errors 
</s-title>
<s-description>
computes the robust Final Prediction Errors (FPE) for a robust
regression fit using M-estimates.
</s-description>
<s-usage>
<s-old-style-usage>
lmRob.RFPE(object, scale=NULL)
</s-old-style-usage>
</s-usage>
<s-args-required>
<s-arg name=" object ">
an object of class <s-expression>lmRob</s-expression>.
</s-arg>
</s-args-required>
<s-args-optional>
<s-arg name=" scale ">
a scale estimate used to compute the robust FPE. Usually this should
be the scale estimate from an encompassing model. If it is
<s-expression>NULL</s-expression>, the scale estimate in 
<s-expression>object</s-expression> is used.
</s-arg>
</s-args-optional>
<s-value>
the robust final prediction error.
</s-value>
<s-see>
<s-function name="add1.lmRob.sgm">add1.lmRob</s-function>,  
<s-function name="drop1.lmRob.sgm">drop1.lmRob</s-function>.
</s-see>
<s-examples>
<s-example>
oilcity.rob = lmRob(Oil~Market, data=oilcity)
lmRob.RFPE(oilcity.rob)
</s-example>
</s-examples>
<s-keywords>
<s-keyword>robust</s-keyword>
<s-keyword>regression</s-keyword>
<s-keyword>models</s-keyword>
<s-keyword>librobust</s-keyword>
</s-keywords>
<s-docclass>
function
</s-docclass>
</s-function-doc>
