PLS_Toolbox Documentation: medcn	< mdcheck	mlpca >

medcn

Purpose

Median center scales matrix to median zero.

Synopsis

[mcx,mx,msg] = medcn(x,options)

Description

MEDCN centers a matrix x to it's median and returns a matrix mcx with median zero columns and a vector of medians mx used to center the data. Optional input options is discussed below.

The output msg returns any warning messages.

Options

           options  = a structure array with the following fields.

                     display:   [ {'off'} | 'on'] Governs screen display.

   matrix_threshold:   {.15} Error threshold based on fraction of missing data in whole matrix.

   column_threshold:   {.25} Error threshold based on fraction of missing data in single column.

See Also

auto, mncn, rescale, scale