# subset.fv

0th

Percentile

##### Extract Subset of Function Values

Extract a subset of an object of class "fv".

Keywords
manip, spatial
##### Usage
## S3 method for class 'fv':
[(x, i, j, \dots, drop=FALSE)
##### Arguments
x
a function value object, of class "fv" (see fv.object). Essentially a data frame.
i
any appropriate subset index. Selects a subset of the rows of the data frame, i.e. a subset of the domain of the function(s) represented by x.
j
any appropriate subset index for the columns of the data frame. Selects some of the functions present in x.
drop, ...
Ignored.
##### Details

This is a method for "[" for the class "fv". It is very similar to [.data.frame except for a few extra checks on the sanity of the result.

##### Value

• A function value object (of class "fv").

fv.object

• subset.fv
• [.fv
##### Examples
data(cells)
K <- Kest(cells)

# discard the estimates of K(r) for r  > 0.1
Ksub <- K[K\$r <= 0.1, ]

# discard the border method estimator
Ksub <- K[ , names(K) != "border"]
Documentation reproduced from package spatstat, version 1.11-2, License: GPL version 2 or newer

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