Description Usage Arguments Value Author(s) Examples
Return or set the extra data columns of an object of class
genalex
. When getting extra data columns, if there are
none, NULL
is returned. When setting, this is more than a
shortcut for attr(x, "extra.columns") <- value
. It checks
that both value
and x
have the same number of rows,
generating an error if not, and it sets the row names of
value
to be equal to the sample names in x
before
assigning value
to the "extra.columns"
attribute.
1 2 |
x |
An annotated data frame of class |
value |
When setting extra columns, a data frame or object
that can be coerced to a data frame. This is done using
|
... |
Additional arguments, currently ignored |
A data frame containing extra columns from x
, or
NULL
if extra columns do not exist. If setting, an object
of class genalex
with its "extra.columns"
attribute
set to value
, after its rownames are adjusted as described
above.
Douglas G. Scofield
1 2 3 4 5 6 | data(Qagr_adult_genotypes)
x1 <- attr(Qagr_adult_genotypes, "extra.columns")
x2 <- extra(Qagr_adult_genotypes)
## there are no extra columns, so both should be NULL
if (! isTRUE(all.equal(x1, x2)) || ! is.null(x1) || ! is.null(x2))
cat("something went wrong")
|
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