[#BloombergLP-bdlsta-LineFit-varianceIfValid]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsta.adoc[bdlsta]::xref:BloombergLP/bdlsta/LineFit.adoc[LineFit]::varianceIfValid
:relfileprefix: ../../../
:mrdocs:

Load into the specified `result`, the variance of the data set X's. Return 0 on success, and a non‐zero value otherwise. Specifically, `e_INADEQUATE_DATA` is returned if `2 > count`.

== Synopsis

Declared in `<bdlsta_linefit.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
varianceIfValid(double* result) const;
----


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