nanmedian

Last update : 25/04/2007

nanmedian - median of the values of a numerical vector or matrix

### Calling Sequence

  `m=nanmedian(x)`
  `m=nanmedian(x,'r') (or m=nanmedian(x,1))`
  `m=nanmedian(x,'c') (or m=nanmedian(x,2))`

### Parameters

- `x` : real or complex vector or matrix

### Description

For a vector or a matrix `x` , `[m]=nanmedian(x)` returns in the vector `m` the median of the values (ignoring the NANs) of vector `x` .

`[m]=nanmedian(x,'r')` (or, equivalently, `[m]=nanmedian(x,1)` ) are the rowwise medians. It returns in each position of the row vector `m` the medians of data (ignoring the NANs) in the corresponding column of `x` .

`[m]=nanmedian(x,'c')` (or, equivalently, `[m]=nanmedian(x,2)` ) are the columnwise madians. It returns in each position of the column vector `m` the medians of data (ignoring the NANs) in the corresponding row of `x` .

In Labostat, NAN values stand for missing values in tables.

### Examples

    x=[0.2113249 %nan 0.6653811;0.7560439 0.3303271 0.6283918]
    m=nanmedian(x)
    m=nanmedian(x,1)
    m=nanmedian(x,2)

### Author

Carlos Klimann

### Bibliography

Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, fifth edition, J.Wiley & Sons, 1990.