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Matrix like operations in a .oct file

From: babelproofreader
Subject: Matrix like operations in a .oct file
Date: Wed, 2 Oct 2013 08:22:58 -0700 (PDT)

I'd like to write concise code in a .oct file to perform matrix
multiplication on the input column vector. The function internally creates,
for example, a row vector A of 11 elements, and then within a loop I want to
perform A * B where B is an 11 element sliding window down the input column
vector, writing the result to an output column vector as the loop
progresses. I've tried various approaches using the information on but I can't get anything to compile -
some of the typical errors I'm getting are:

no matching function for call to ‘ColumnVector::extract(octave_idx_type,
int, octave_idx_type&, int)  
cannot convert ‘RowVector’ to ‘double’ in assignment

Any pointers?

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