Does anyone have any experience with using Boost Accumulators with uBlas vectors? &nbsp;I can compile a simple example, but when it is run I get errors about mismatched size types. &nbsp;If anyone has any insight, I would appreciate the assistance. &nbsp;I have copied the output and my code below.<div>
<br></div><div>Thanks,</div><div>Jeremy</div><div><br></div><div><br></div><div>Output:</div><div>===========</div><div><div>Testing/learning the Boost Accumulator library.</div><div>Mean = 3</div><div>Variance = 2</div><div>
<br></div><div>Now trying with uBlas vectors.</div><div>vec: [5](1,1,1,1,1)</div><div>vec*2: [5](2,2,2,2,2)</div><div>Check failed in file ./boost/numeric/ublas/vector_expression.hpp at line 548:</div><div>size1 == size2</div>
<div>terminate called after throwing an instance of &#39;boost::numeric::ublas::bad_argument&#39;</div><div>&nbsp;&nbsp;what(): &nbsp;bad argument</div><div><br></div><div><br></div><div>Code:</div><div>==============</div><div><div>/*test_BoostAccumulator.cpp</div>
<div><br></div><div>&nbsp;This file is used for testing/learning about Boost.org Accumulator library</div><div><br></div><div>*/</div><div><br></div><div>#include&lt;iostream&gt;</div><div>#include &quot;boost/accumulators/accumulators.hpp&quot;</div>
<div>#include &quot;boost/accumulators/statistics/stats.hpp&quot;</div><div>#include &quot;boost/accumulators/statistics/mean.hpp&quot;</div><div>#include &quot;boost/accumulators/statistics/variance.hpp&quot;</div><div>#include &quot;boost/numeric/ublas/vector.hpp&quot;</div>
<div>#include &quot;boost/numeric/ublas/io.hpp&quot;</div><div>#include &quot;libs/numeric/bindings/lapack/test/utils.h&quot;</div><div><br></div><div>using std::cout;</div><div>using std::endl;</div><div><br></div><div>namespace accumulate = boost::accumulators;</div>
<div>namespace ublas = boost::numeric::ublas;</div><div><br></div><div>void WithUBlas();</div><div><br></div><div>int main(){</div><div><br></div><div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;Testing/learning the Boost Accumulator library.&quot; &lt;&lt; endl;</div>
<div><br></div><div>&nbsp;&nbsp; &nbsp;accumulate::accumulator_set&lt;double,&nbsp;</div><div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp;accumulate::stats&lt;accumulate::tag::mean,&nbsp;</div><div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;accumulate::tag::variance(accumulate::lazy)&gt; &gt; acc;</div><div><br>
</div><div>&nbsp;&nbsp; &nbsp;// Add some data</div><div>&nbsp;&nbsp; &nbsp;for( int i = 0; i &lt; 5; ++i ) acc(i+1);</div><div><br></div><div>&nbsp;&nbsp; &nbsp;// Display results</div><div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;Mean = &quot; &lt;&lt; accumulate::mean(acc) &lt;&lt; endl;</div>
<div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;Variance = &quot; &lt;&lt; accumulate::variance(acc) &lt;&lt; endl;</div><div><br></div><div>&nbsp;&nbsp; &nbsp;WithUBlas();</div><div>&nbsp;&nbsp; &nbsp;return 0;</div><div>}</div><div><br></div><div>void WithUBlas(){</div>
<div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;\nNow trying with uBlas vectors.&quot; &lt;&lt; endl;</div><div><br></div><div>&nbsp;&nbsp; &nbsp;ublas::vector&lt;double&gt; vec(5,1.0);</div><div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;vec: &quot; &lt;&lt; vec &lt;&lt; endl;</div>
<div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;vec*2: &quot; &lt;&lt; vec*2 &lt;&lt; endl;</div><div><br></div><div>&nbsp;&nbsp; &nbsp;accumulate::accumulator_set&lt;ublas::vector&lt;double&gt;,&nbsp;</div><div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp;accumulate::stats&lt;accumulate::tag::mean&gt; &gt; acc;</div>
<div><br></div><div>&nbsp;&nbsp; &nbsp;// Add some data</div><div>&nbsp;&nbsp; &nbsp;for( int i = 0; i &lt; 5; ++i ) acc( vec*(i+1) );</div><div><br></div><div>&nbsp;&nbsp; &nbsp;// Display results</div><div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;Displaying results\nMean = &quot; &lt;&lt; accumulate::mean(acc) &lt;&lt; endl;</div>
<div><br></div><div><br></div><div><br></div><div>}</div><div><br></div></div></div>