Missing Allelic Data
This is a method of the generic function na.omit
.
## S3 method for class 'loci' na.omit(object, na.alleles = c("0", "."), ...)
object |
an object of class |
na.alleles |
a vector of charater strings giving the alleles to be treated as missing data. |
... |
(unused) |
The side effect of this function is to drop the rows (individuals)
with unclearly identified genotypes, i.e., with at least one allele
among na.alleles
.
Other variables in the data table are eventually checked and levels with no observation (e.g., population) are dropped.
an object of class "loci"
.
Emmanuel Paradis
data(jaguar) nrow(jaguar) nrow(na.omit(jaguar))
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