sscount {mefa} | R Documentation |
The function makes an object of class 'sscount' from a data frame with columns for samples, species, count and optionally segment.
sscount(sstable, zc = "NULL")
sstable |
dataframe with three or four columns. Columns must be in the order of sample, species, segment (optional) and count. |
zc |
identifier for samples with zero count, by default it is "NULL" . When non existing identifier is given, the value is set to default with warning. |
A result is an object of class 'sscount'.
data |
data frame with columns sample , species , segment , count .
First three columns are factors, count is numeric. |
zc |
flag for rows with 0 total count, zc="zero.count" . |
nsamples |
number of samples (levels) in data column sample . |
nspecies |
number of species (levels) in data column species ,
"pseudo-species" created by zc is excluded. |
segment.levels |
list of levels in data column segment . |
Peter Solymos, Solymos.Peter@aotk.szie.hu, http://www.univet.hu/users/psolymos/personal/
drtsscount
, fill.count
, inflate
, sscount
,
ttsscount
### 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") sscount(ss) sscount(ss, zc="zero.count") sscount(ss[,c(1,2,4)], zc="zero.count") ### Example 2: field data of the dolina ## Not run: data(dol.count, dol.sample, landsnail) sscount(fill.count(dol.count), zc="zero.count") ## End(Not run)