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## Re: [Help-gsl] GSL Multidimensional Minimizer accepting a matrix instead

**From**: |
Rhys Ulerich |

**Subject**: |
Re: [Help-gsl] GSL Multidimensional Minimizer accepting a matrix instead of vector ? |

**Date**: |
Tue, 7 Feb 2012 13:16:50 -0600 |

>* I am trying to write a minimizer for a function that takes a data*
>* matrix (N x p) and a weight vector (P-dimensional) and a class table*
>* vector Y (N -dim). The Multidimensional Minimizer in GSL only allows a*
>* vector data type for the functions gsl_multimin_function and*
>* gsl_multimin_function_fdf. The two-dimensional paraboloid example*
>* shows how to pass a single vector*
>* of data (x,y). In my case I have a matrix. Is it possible to do such*
>* minimization with gsl ?*
Can you pack your matrix, weight vector, and vector into a contiguous
region of memory and then use a gsl_vector_view
(http://www.gnu.org/software/gsl/manual/html_node/Vector-views.html)
to view that memory as a single "vector" to accomplish what you want?
- Rhys