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Aide de Scilab >> Statistiques > Données incomplètes > nanmedian

# nanmedian

median of the values of a numerical vector or matrix

### Syntax

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

### Arguments

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 medians. 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)```

### Bibliography

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