xcount {mefa}R Documentation

Makes an Object of Class 'xcount'

Description

The function makes an object of class 'xcount' from an object of class 'sscount'.

Usage

xcount(ssc, segment = 0)

Arguments

ssc an object of class 'sscount'.
segment identifier of the segment within the 'sscount' object to make the crosstabulation, the default 0 refers to "all" segments.

Value

A result is an object of class 'xcount'.

segment segment of the 'sscount' object of which the crosstabulation was made, or "all".
data matrix containing count data of sample/species crosstabulation. Crosstabulation results the same dimensions for data matrices of each segments.
nsamples number of rows (samples) in data.
nspecies number of columns (species) in data.

Author(s)

Peter Solymos, Solymos.Peter@aotk.szie.hu, http://www.univet.hu/users/psolymos/personal/

See Also

as.xcount, check.attrib, mefa, sscount, xorder

Examples

### Example 1: simple atrificial data

ss <- data.frame(
cbind(
c("sample1","sample1","sample2","sample2","sample3","sample4"),
c("species1","species1","species1","species2","species3","zero.count"),
c("male","female","male","female","male","male")
),
c(1, 2, 10, 3, 4, 1)
)
colnames(ss) <- c("sample.id", "species.id", "gender", "catch")

xc1 <- xcount(sscount(ss, z="zero"))
xc1

xc2 <- xcount(sscount(ss, zc="zero.count"))
xc2

xc3 <- xcount(sscount(ss, zc="zero.count"), 0)
xc3

xc4 <- xcount(sscount(ss, zc="zero.count"), 1)
xc4

### Example 2: field data of the dolina

## Not run: 
data(dol.count, dol.sample, landsnail)

dxc <- xcount(sscount(fill.count(dol.count), zc="zero.count"))
dxc
## End(Not run)

[Package mefa version 1.0 Index]