Medcn

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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, percentile, polytransform, rescale, scale