# smooth.fv

From spatstat v1.18-4
by Adrian Baddeley

##### Apply Smoothing to Function Values

Applies spline smoothing to the values in selected columns of a function value table.

- Keywords
- spatial, nonparametric

##### Usage

`smooth.fv(x, which = ".", ...)`

##### Arguments

- x
- Values to be smoothed.
A function value table (object of class
`"fv"`

, see`fv.object`

). - which
- Character vector identifying which columns of the table
should be smoothed. Either a vector containing names
of columns, or the string
`"."`

representing all the columns that are plotted by default. - ...
- Extra arguments passed to
`smooth.spline`

to control the smoothing.

##### Details

`smooth.spline`

is applied
to each of the selected columns in turn
(using the function argument as the $x$ coordinate
and the selected column as the $y$ coordinate).
The original function values are then replaced by the corresponding
smooth interpolated function values.

##### Value

- Another function value table (object of class
`"fv"`

) of the same format.

##### See Also

##### Examples

```
data(cells)
G <- Gest(cells)
plot(G)
plot(smooth.fv(G, df=9), add=TRUE)
```

*Documentation reproduced from package spatstat, version 1.18-4, License: GPL (>= 2)*

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